Tokina RMC 28mm F/2.8

 

I've been updating more frequently but it's been a while since there has been a lens review so without further ado here is a review of the Tokina RMC 28mm F/2.8. In my last entry I was somewhat critical of the SLRmagic 28mm lens which costs £100 so let's see how this legacy lens does bearing in mind that if you're lucky you can drop a zero off the price of the SLRmagic lens!

 

Build quality and finish:

Perfect pretty much, it's not a Leica but it's solid, well damped and feels like it will never break, you can't really ask for more from a lens in this class. Tokina have always had a reputation for build quality which persists today with their modern AF lenses.

 

Image Quality:

The lens puts in a very decent performance with great central sharpness at F/2.8 which does fall off somewhat at the boarders but not too much. Once the lens is stopped down to F.5.6-F/8 there is impressive sharpness across the image frame. The lens gives very nice saturated colours and contrast is good and punchy as well. Bokeh whilst not the first thing on people's minds with such a lens is commendably smooth for such a lens and certainly doesn't spoil a picture when it rears it's head!

Conclusion?:

This is a great inexpensive lens that is well made and gives nice punchy images. If you shop around you can get it for very little money although they are starting to creep up in price. If you have trouble finding one then look out for rebranded versions of the same lens, the Mitsuki 28mm F/2.8 for example is the exact same lens except it has an auto/manual switch!

 

Super Paragon 28mm F/2.8 (about £10 from ebay)

 

I apologise for the lack of updates recently! This is for several reasons, firstly the news that I am to be a father for the first time has taken up a lot of my concentration recently but the main reason is simply that I haven't gotten around to it, I've started to write a new entry several times but as I always have about 25 browser windows open I have just haven't managed to finish it. It's not even that writing an entry is a hugely time consuming job, I'm just a disorganised person as much as I hate to admit it!

Anyway!

The Super Paragon 28mm is a wide angle prime lens manufactured by Cima Kogaku and was available under various names as well as Cima selling it under their own Cimko label. Paragon was a brand name that the British photographic importer Photax put on the lenses they sold, much in the same vein as Vivitar and Soligor and so on...

 

Build quality and finish:

 

This is a well built and sturdy feeling lens with a well damped focus action, the macro scale on the front barrel is a welcome little feature and the only other wide angle I have seen with the same feature is the Sigma mini-wide although the Sigma can only manage a 1:4.5 reproduction ratio vs the Paragon's 1:4

Image Quality:

 

The image quality is great for what must have been a relatively inexpensive lens at the time of it's release. Starting from wide open the centre sharpness is strong with the edges being less impressive but not terrible. From F/5.6 onwards sharpness is very good across the frame and I found that between F/5.6 and F/11 this lens is a match for the Tokina RMC 28mm F/2.8 and the Tamron adaptall 28mm F/2.5 which is pretty good going for a lens that can be had so cheaply. I found bokeh was quite smooth for a wide angle so using this lens as a standard lens on a four thirds camera works quite well. Colour and contrast left no room for complaint, the images always seemed to have plenty of punch and nice colours. I didn't notice any significant issues with regards to either lateral or longitudinal chromatic aberrations. Overall the lens gives nice punchy images, it's not going to embarrass a Zeiss or Canon L but considering how much it can be had for it's a pretty impressive little optic.

By clicking on these images you can go to flickr where a larger version is available:

 

 

Conclusion?:

 

I found this lens to be a great little performer which delivered very solid results and as is often the case I think it's an absolute steal considering it often sells for £15 or much less on ebay. If you see one going cheap then snap it up!

 

Tokina SZ-X SD 28-105mm F/4-5.3 F4-5.3

 

 

Because I was impressed by the overall performance of it's smaller brother I decided to try out the Tokina SZ-X SD 28-105mm F/4-5.3 to see if it could deliver a similar performance over a more versatile focal range (albeit with slightly slower maximum apertures)

 

Build quality and finish:

A similar story to the 28-70mm, this lens has a lot of metal and an overall solid feel. This lens is a push/pull design as opposed to the traditional 2 touch design of the smaller 28-70mm but otherwise has a very similar finish.

Image Quality:

And once again a similar story, very similar!. Wide open we have decent central resolution at the wide end and decent resolution across the frame at the long end. Stopped down to F8 produces razor sharp results ideal for landscapes. Because of the relatively slow maximum apertures bokeh is not a consideration all too often but when coaxed into producing it the lens shows a relatively smooth performance for an older zoom lens, one benefit of the slow apertures is that axial chromatic aberrations (sometimes referred to as bokeh CA) is extremely well controlled. That just leaves colour and contrast, both excellent across the aperture range!

By clicking on these images you can go to flickr where a larger version is available:

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Conclusion?:

It has to be another recommendation, apart from low light work where the slow maximum apertures would be a disadvantage this is a great all rounder and puts in a  decent optical performance, best of all people are practically giving them away, go and buy one!

 

Tokina 28-70mm f/3.5-4.5 SZ-X270 SD

 

 

Build quality and finish:

There is nothing lacking here, the lens is mostly metal and has smooth focus and zoom rings. Overall construction is very good considering this was not a top of the line lens, the only possible criticism is that there is no internal focus mechanism so using a polarizer filter can be tricky as the front element rotates during focusing but this is not unusual for an older zoom, especially one that was modestly priced.

Image Quality:

In short; great! The lens has superb colours, almost too saturated sometimes! In terms of sharpness the centre of the frame is pretty good at 28mm wide open and stopped down to F/8 is sharp across the frame, just as sharp as most of my 28mm primes! Wide open at 70mm sharpness is already very decent across the frame and is superb at F/5.6. Contrast never seems to be lacking and even the bokeh is smooth in most situations although at 28mm with close backgrounds it can be understandably busy. Overall I was impressed by the results from this lens, it's best stopped down at the wide end which I tend to do with most lenses as I usually do landscape work at wide angles and at 70mm it's really very good wide open so can be useful for portraits. The lens has a macro mode and while it doesn't allow for a huge magnification it's worth noting that sharpness remains decent even at or near the minimum focusing distance.

By clicking on these images you can go to flickr where a larger version is available:

 

Conclusion?:

It's well made, light, has great image quality and a decent macro mode, the only thing I found lacking was a non rotating front element, this is another bargain lens that you can buy for a ridiculously small price and get great results from, I recommend it!

 

RE: Cheap polariser filters

An update about cheap polarizer filters!

 

A while ago I wrote about some Sakar CPL filters that were bought cheaply from ebay and how well they performed however after some research I have discovered an issue that is worth mentioning.

It turns out these filters work perfectly well on lenses up till about 70mm in focal length, after that they will degrade picture quality because they are not uniformly flat enough and when placed in front of a lens will create a prism effect and distort light rays. The effect worsens with longer focal lengths and larger physical apertures (ie the actual size of the lens opening and not the aperture setting)

At first I thought it was just an issue related to the cheapness of the lenses and that by buying a more expensive filter I would be safe to use it on lenses with a longer focal length but after some research I discovered that even expensive filters can have very negative effects on long lenses, that is why a lot of super tele lenses have dedicated drop in filters at the rear of the lens, this smaller filter is a lot easier to make totally flat so it does not impact on image quality.

The problem is discussed in greater depth here:

http://www.clarkvision.com/articles/evaluating_filter_quality/index.html

There is also a discussion here on the red movie making forum where a user has used VERY expensive Schneider filters and still experiences severe image degradation which he likens to smearing Vaseline over the lens:

http://www.reduser.net/forum/showthread.php?t=39893&page=2
 

So to conclude this short entry, the cheapy ebay filters still work incredibly well for their price but I would advise not using them on lenses over 50mm to be safe, I have tried a Tian Ya CPL that was much better and worked till about 150mm so it really depends on which filter you get but I would say 50mm to be safe and anything more is a bonus, we are talking about £3 filters here! If you want to use a CPL on a longer lens then be prepared to dig deep into your pockets because it's not just the cheapy ebay ones that spoil the party on Tele lenses, no wonder there is such split opinion over filters and their effect on image quality!

On a side note, I have also used Green.L brand UV filters and have noticed no problem with these even on a 500mm lens so in my experience it's the polarizing filters that can be tricky!

 

Southerndown sunset, shot with an EOS 350D, a Sigma EX 18-50mm and a Sakar CPL!

Ebay nightmares: Canon EOS 350D and robsonic-fm

 

My 350d gave up the ghost recently so I decided to buy another body.

This seller had a tidy one listed, "perfect working order with no issues" and so on so I bought it.

The camera turned up without a dust cap on the body, the lens mount stuffed full of bubble wrap, the viewfinder was caked in dust and dead bugs etc.

Worst of all the focus confirm lights were all misaligned so far that they didn't even hit the boxes in the viewfinder, they were all too far to the right. As a consequence the lights do not hit the little reflectors/etched areas and the lights are so dim you could hardly see them unless you turned the lights off!

I emailed the seller and he claimed this was normal for ANY used camera.

He said it was a regular issue with this particular model, even though he said "no issues" in the description.

When I demanded a refund he told me he had found another body that "works correctly" at which point I said if this is the case then you were lying by claiming the first body isn't faulty.

I sent the camera back but he did not refund my original postage, on top of the postage to send it back I was £18 down.

I left him negative feedback and he sent me a ridiculous threat about taking me to court (he must have heard that silly story in the news a few years back) he then sent me a request to change my feedback which I denied!

Then he sent a request to cancel the transaction, that option is supposed to be for when an item gets lost or damaged and cannot be sent, he stated to ebay that I had "changed my mind" he was obviously trying to get his selling fees back but seeing as he ripped me off I immediately cancelled his request. He then accused me of being a scam artist, I pointed out that to scam someone you need to make money from them, not buy faulty goods and not get all your money back.

He has now sold the camera to someone else even though he still possesses money I paid towards it. The new owner left positive feedback but I emailed them and told them the situation, they said they had not fully checked the camera over but now it seems they have realised it is faulty too!

In the meantime, someone else has bought a camera from this guy that was faulty and he has accused the buyer of damaging it himself and is refusing to refund him!

Basically this guy is dishonest, arrogant, hostile, unprofessional and very poorly informed in terms of legal matters and distance selling rules etc.

He tries to pass off physical damage and malfunction as "normal wear and tear"

AVOID THIS SELLER!

robsonic-fm

Named and shamed!

Kodak gear 78-215mm F/4.5-5.6

 

In my last update I mentioned I had bought a Kodak Gear 78-215mm F/4.5-5.6 in Canon EOS mount for peanuts and that I was quite optimistic about it's capabilities considering it's price and I'm pleased to say I was right. This lens is essentially a re-badged Tamron that was also available under the Tiffen name. The true focal length is 80-210mm and the Kodak version can be had with both 80-210 and 78-215 written on the side but they both report as a 80-210 in EXIF information.

Build quality and finish:

The lens has a lot of plastic in it's build but is certainly well put together and even the manual focus ring, while small compared to days of old is still superior to most of Canon's own efforts in this price range and benefits from a rubber grip. The lens is very compact and light which makes it ideal for when you don't want to be weighed down by too much equipment. The lens even comes with a custom Kodak bag that has room for the lens plus one more and a few filters, a really nice touch and along with the lens hood exhibits how stingy Canon et all are with their lower end products, often making you pay extra for such accessories. The focus motor is a bit noisy but not too bad, you can't expect a silent motor in this price range. The focus action is acceptably swift but accuracy appears to become worse the further towards the long end of the zoom you go.

Image Quality:

This is where the lens shines for me, the colours it produces are very vivid and eye catching and contrast was strong regardless of aperture of focal length. The sharpness was good wide open up till about 135-150mm where it began to tail off slightly but by stopping down to F/8 bought the sharpness right back. You can actually get fairly sharp images wide open at full tele but the autofocus seems to be inaccurate enough to miss slightly most of the time, this may well be partly thanks to my 350D too but I found it safer to just stop down when at the long end. With a camera that has a better AF system the lens may perform better in terms of focusing at 210mm and if you had live view you could obviously tweak the focus manually.

By clicking on these images you can go to flickr where a larger version is available:

 

Conclusion?:

Overall this is another one of those bargain autofocus lenses that can be picked up for next to nothing and delivers surprisingly good results, I have better lenses but they cost many times as much and are also much heavier. These lenses crop up on eBay a few times a month and if you need a telephoto zoom on a budget or like me you just like a bargain I recommend giving it a try!

 

The Canon 35-80mm F/4-5.6 III in not terrible shocker!

Some lenses are just destined to be unpopular and this is a classic example. The problem starts not so much because of the actual deficiencies of the lens but because of snobbery. Time and time again we hear about people who have "all the gear but no idea" and how many times have we frequented forums where members have spent thousands on the kind of equipment and software we can only dream of only to post the most mediocre photos that could have been taken with a compact? These people are the worst for spreading false information, often commenting on equipment they have never owned purely out of snobbery.

Disclaimer of sorts:

Before I proceed I want to make it clear that this IS a less than stellar lens, it does have a low build quality, it does have distortion and chromatic aberrations but none of these factors account for why most people hate this lens, people hate this lens because it's CHEAP and people who have limited photographic skill but lots of money need to feel they are justified in spending thousands on lenses.

Any lens can capture a good photo, I honestly believe that. If you have a stunning sunset you can take a picture of it with your phone and it will still be a good photo, the subject is already there and will be the same no matter what medium is used to record the scene. The difference the equipment makes to me is in the actual image quality, you can watch a great movie on an old black and white TV set or on a brand new 1080p system and it will still be a great movie, the expensive equipment does however increase the viewing quality and in turn raises the overall enjoyment. So while the gear doesn't make the photo I do believe that there is a level of quality to which we must adhere to at least do a scene justice, the more expensive the equipment gets the more the law of diminishing returns comes into play but at a more affordable level there is a great leap between let's say a camera phone or cheap compact and an entry level DSLR with even a mediocre lens, in some cases you could pick up the DSLR for less than the phone/compact but even brand new an entry level DSLR and kit lens will not cost more than a few hundred pounds or dollars more than one of those ultra high pixel count cameras or camera phones. The DSLR will have much, much greater per pixel sharpness, better colour, better noise control by a ridiculous margin, almost incomparable features and functions and even with the cheapest of kit lenses will have a better lens with less optical flaws and improved sharpness and contrast. Now to make the equivalent upgrade over the entry level DSLR you would not have to spend a few hundred or even a few thousand, there is simply no DSLR/lens combo available that will improve upon an entry level DSLR as much as that DSLR improves upon a camera phone or a cheap compact.

The point I'm trying to make is that once you reach a certain level of image quality the returns of spending more money quickly become harder and harder to discern. There is a level of image quality that is nowadays affordable to reach by most people, any entry level DSLR and lens will will take photos that are almost immeasurably superior to a cheap compact or camera phone. There are a lot of people who own very expensive cameras and lenses yet don't have the technical skill or sheer photographic eye to make the most of entry level equipment let alone top of the line professional gear. There are people out there that would not be able to use a Canon 35-80mm F/3.5-5.6 III to it's full ability yet will passionately slate it and condemn it as "The worst lens canon ever made" having never touched one and having never taken a decent photo in their lives.

The purpose of this entry then is not to say that this lens is anything special because it's not but to say that it is vastly better than popular opinion would suggest, it's not a top performer and you WILL see a difference between this lens and let's say, a Canon 17-55mm F/2.8 but just try to remember that I bought the 35-80mm for about the same price as the hood for the 17-55mm costs! Let's say you picked up a second hand 350D body for £150 then you picked up a 35-80mm for £15, that £165 combo will shame any camera phone or cheap compact for image quality and functionality. But if you were to buy the aforementioned 17-55mm along with an EOS 7D to put it on would this £2200 combo shame the £165 350D/35-80mm in the same way? Of course not, it would be a considerably better but it would not be the same giant leap, the same monumental step forwards and it certainly would not represent the same value for money. It's hard to break the image quality down into measurable units but certainly the 350D/35-80mm would represent a better quality/pound ratio than the 7D/17-55mm.

So what is this lens if it is not great? It's simply good enough. It represents that first jump in image quality over basic imaging devices and a price/performance ratio that more expensive lenses will never reach. It will take decent shots, it will do most scenes justice, it will allow you to make decent A3 prints and it will deliver enough sharpness once stopped down to mid apertures to keep up with most digital sensors. It is a world away from a camera phone but only a city away from a Canon L lens. Obviously the aperture is slow and there is less scope for using the depth of field creatively but it is still immensely more useful in this respect than any compact will ever be purely because a compact camera is limited by it's tiny sensor.

Build Quality and finish:

This lens is actually kind of solid feeling in a strange way, it's very light and very basic in it's construction but it seems to at least be made out of hard plastic that wouldn't break easily, it's more substantial looking than the Canon 50mm F/1.8 which isn't saying much but might at least give you some idea. The finish is very basic and as with many entry level Canon lenses the focus ring is ridiculously small, it's almost like a vestigial structure such as the human appendix, it's a throwback that through disuse has shrunken to the point of being barely functional. The autofocus motor is quite noisy and the lens cannot always be trusted to get a focus lock first time every time, this may be just the lens or a combined effort between the lens and my 350D but either way I found it wise to take a copies of each shot where possible, making sure to half press the shutter in between to allow the lens to have another try at getting it right. The failure rate wasn't high but I would say maybe 2 out of every 10 shots could be mis focused so it was worth taking several shots to assure at least one was focused correctly, this issue was more prevalent at the tele photo end of the zoom. The lens features only 5 aperture blades so out of focus highlights will not be circular once the lens is stopped down and some people will hate this but personally I appreciate most types of bokeh be it silky smooth or bold and quirky so I didn't feel hard done by in this area. Overall the lens displays all the hallmarks of an object that was built to a tight budget because it was!

Image quality:

Even wide open the central sharpness is perfectly decent, corners inevitably become soft, more so at the telephoto end but even so we are talking about a lens that is worth about £15. Colour and contrast are totally fine in my eye, faithful to real life with maybe a slight bias towards magenta which gives a nice warmth to images. As for flare and colour fringing, this only occurred in challenging situations such as back lit tree branches and although unpleasant were relatively mild and easy to correct in software. Overall the lens is capable of taking punchy photos with usable sharpness wide open and once stopped down to F/8 sharpness that appeared to exceed the resolution of 8mp sensor inside my 350D. Considering the used value of this lens the quality is quite remarkable.

I'm going to provide a brief comparison between a Casio EX-Z77 (typical entry level compact) a Sigma 18-50mm F/2.8 EX DC (supremely sharp mid to upper range zoom) and the 35-80mm (dirt cheap piece of junk!) It was hard to get the same field of view with the Casio due to the different crop factor and lens focal length involved but I got it as close as I could, The Sigma and Canon lenses were both set to 35mm and F/8.

First of all some web sized shots:

Casio:

 

Canon:


 

Sigma:

Even at low resolution it's possible to see a lack of detail in the Casio photo compared to the others but in terms of colour and overall appearance the images are quite close, the Casio and Canon lenses have more of a magenta hint and the sigma is slightly more neutral, Note also that the sigma exhibits less slightly distortion, particularly visible at the bottom right of the frame

Now lets do some pixel peeping, first up some 100% crops from the Casio:

Now the Canon:

And finally the Sigma:

It's plain to see that the Casio image is very soft at the pixel level with noise reduction killing detail even at the base ISO setting, the sensor is 7mp but I would personally say there's only 4mp of information being recorded at most. The 350D/35-80mm combo is immediately more impressive with improved sharpness and detail and better contrast. The 350D/Sigma combo does provide a tiny amount more detail but not by much and by looking at the green fence in particular it appears that both the Canon and Sigma optics out resolve the 8mp sensor inside the camera. Overall then the the Canon lens completely outclasses the Casio compact and runs the Sigma very close, the difference being the Canon lens cost £15 and the Sigma lens cost me £370 when it was new, now I'm not saying the Canon lens is as good because it simply isn't, the Sigma is sharper, has less distortion and is less prone to colour fringing and flaring (compare the cladding around the chimney), not to mention that fact that the Canon lens cannot physically compete with the Sigma's faster aperture and superior build quality. All I'm trying to point out is that at F/8 they are very close and with a scene like this in particular I would always be shooting at F/8 even with the Sigma so whilst the Canon is somewhat inferior overall both lenses are capable of getting a decently sharp and colourful shot in at F/8, both lenses will do the job and produce a file that will print nicely at A3.

The following pictures are all clickable and will take you to my Flickr page where you will be able to view the full size images:

80mm F/5.6 (wide open):

 

35mm F/5 (half a stop from wide open, focus is on the TV aerial):

 

80mm F/5.6 (wide open):

 

35mm F/5.6:

None of them are prize winners obviously but they give you an idea of how the lens performs.

Conclusion?

Put basically the 35-80mm is a decent enough lens and an amazing one when it's value is taken into consideration, it receives universal scorn for being a bad lens but it seems very few people are willing to give it a try. I suppose to some people it would be pointless to even bother but to me it is interesting to use different lenses just for the sake of variety because all lenses have unique characteristics and never render a scene in quite the same way. I bought this lens to see just how bad it was and it turned out I was surprised by just how OK it was! If you see one for cheap then I recommended trying one out, take it somewhere you would normally use a more expensive lens and see how it does, make an effort to squeeze the most out of the equipment and challenge yourself and remember, if you don't like it you can always take out the front element and use it as a super macro lens capable of greater than 1:1 reproduction, but that's for another entry!