Posts tonen met het label nikon. Alle posts tonen
Posts tonen met het label nikon. Alle posts tonen

zaterdag 6 juli 2013

review of the Nikkor 35-105mm f/3.5-4.5

The 35-105mm was Nikon’s first variable aperture lens, but compared to the modern lenses it does not lose a lot of light. Rather than closing down to f/5.6 at the maximum zoom range, it closes down to f/4.5. Besides the useful focal range (especially on film / full frame) it is also capable of a reproduction ration of 1:4. So this seems like an interesting lens. And to be honest that’s the reason I bought it, because I was curious and not because I needed it.

Of course this is an older zoom lens, which means that the quality is not comparable to current Nikkor zoom lenses. However the image quality is surprising, the lens is far more usable than I anticipated. If you punish this lens it does show its shortcomings, but if you are aware of them you can make pretty good use of this lens. So one of the things you should not expect this lens is to produce good image quality when you are focused on infinity and you use a wide open aperture. Then the image becomes muddy and it reminds a bit of a smart phone image. However, if you close down one stop and try not to be at the extremes of the focal length you can get a very acceptable image. On a scale of 1 to 10 I would give it a 6.5 or 7 while the 50mm would get a 10. So if I want an extremely sharp image for a large print I would not use this lens. And I will probably never take it when I go out to make landscape photographs.



However the lens is quite sharp when you focus a bit closer. The normal focus ring allows you to focus up to 1.4 meters, but there is also a macro ring. Depending on your focal range you can get a magnification of 1:4 (35mm) or 1:5.5 (105mm). And the images I got out of that mode are very good. Again, on a scale of 1 to 10 I would give it an 8. And since we discuss close-up photography we might as well discuss bokeh. The bokeh of the lens is alright, it is not really bad but also nothing outstanding. The aperture blades are not curved so you can see the aperture blades back in the bokeh highlights. Normally I don’t find it distracting but with this lens it can be a bit distracting from time to time depending on the actual aperture you use. But if you have less out of focus highlights, shoot at an aperture which suits the bokeh the bokeh is quite nice. The area which is closest to the focus point can be a bit distracting depending on the background, but generally it looks good.

As you can see, the ground which is only just out of focus is a bit busy. But besides that I like the bokeh in this photograph


This lens flares quite easily. If you can find an appropriate lens hood you should use it to avoid unwanted flare. But the flare of this lens is quite beautiful, it shows that this lens contains out of a lot of lens elements. You can control the flare to a certain extend by zooming a bit in or out. Zooming just a bit can change the look of the flare dramatically and I you have the time it is worthwhile to experiment with the best focal range. Of course this lens has other short comings as well. It has quite some distortion I’ve read on other websites. But until now it hasn’t bothered me that much. I have to admit, I do not shoot architecture, but the distortion isn’t too obvious and I generally do not correct for it. Another issue this lens apparently has is vignetting. After all, it’s an old zoom. But I have not noticed it yet. I’m sure there is some, but it hasn’t bothered me yet even though I don’t like it if you can see imperfections in my photographs which were not intended for the viewer to see. (flare on the other hand can be a nice creative tool)




So I’ve discussed the image quality of this lens, but I don’t think that’s the most important I like about this lens. I have sharper lenses. But the thing about this lens is that it gives reasonable image quality while also being very versatile. You can focus reasonably close and the focus is just nice, it’s the classic Nikkor quality. I like the focal range on DX (but that’s because I don’t like shooting with lenses wider than 28 on DX) especially for a general walk-around lens. It has a 52mm filter thread which is shared with a lot of other Nikkor lenses. And the build quality is just great. The main quality of this lens is the handling. Of course I can get better image quality by shooting with a modern zoom or a prime, but there’s just something about this lens that keeps making me use it. Because what’s image quality worth when your photos suck? I really like my primes, and I think that they help me to see better photos. But from time to time you just want a zoom, and then I pick this lens of the shelf. 


zondag 25 maart 2012

Nikkor 28mm f/3.5 (pre-ai)




Why would you buy an manual focus lens within the range of your kit lens in the first place, and why on earth would you want to have one with an aperture that your kit lens is able to give you as well? First of all, I like primes, I like the way you always get the same kind of perspective. When you have a zoom, the perspective changes with every time you use another focal length. Primes give you a better idea how things will look like before you look through the viewfinder because the way they render what they see does not change. This makes you work faster, or at least when you’re used to using primes.

But for me the most important reason to have this lens is that it has hyper focal markings on its body. I like to use this lens for landscapes, and the hyperfocus markings are very useful. The reason I find the ability to use hyperfocus distances so important is that by closing your lens too far down diffraction occurs. Diffraction causes your lens to be less sharp than at the middle apertures, and because of that it is useful to use hyperfocus distances.

Handling the lens
The focus is very light on this lens, you need little pressure to turn the ring. But it is not so light you “overshoot”, you can focus this lens very precise. Besides the perfect focus mechanism this lens is fairly wide, even on DX sensors, this means your DoF is larger than with telephoto lenses. Because of that you maintain focus much longer, making it even easier to focus this lens.

Another reason I love this lens for my landscape shots is that the front element does not turn when you focus. It only extends a bit, but that doesn’t matter. This allows you to mount filters on this lens without the focus affecting it. Imagine using a polarizer on a lens which front element turns when you focus, almost impossible to use. With this lens it is much easier to use a polarizer, or a graduated neutral density filter.

Besides that there is little to mention about the lens, it is quite small and light. It makes the ideal travel companion on a DX camera. This lens decreases the size of your DSLR significantly compared to a zoom lens, because this lens is so short it takes up less space.



Results
The results are just amazing. This lens isn’t very fast, nor is it very wide. Nikon didn’t need  to make compromises to build this lens, resulting in a very good lens. Pointed at the sun it is hard to get a flare, and sharpness is already very good wide open. There is little CA. It is sad, but there’s just nothing more to say about the results, except that it is just a very good lens.



Conclusion
As I said, this is a very good lens. You will get great results from this lens, even wide open. In that perspective it is sad that its focal length falls within the reach of the kit lens. This lens isn’t significantly faster than your average 18-55mm f/3.5-5.6. However I am convinced that this lens was able to maintain its value, especially because of the hyper focus markings. These are really huge to me, and I prefer this lens over my kit lens because of that, and because its front element does not rotate during focusing.

Because this lens isn’t exceptionally fast or wide this lens can be found for little money, which is another great quality.

(I don't like to put up full resolution files, if you're interested in this lens you can leave a comment / sent an email for larger files)


zondag 4 maart 2012

vivitar 200mm f/3.5





Vivitar was a lens re-seller, and the serial numbers are an indicator who actually manufactured the lens. There is some difference in optical quality and exterior per manufacturer. You can check who made your lens on this list
The serial number on my lens starts with 28 which means it’s made by Komine.

I am not sure if I am really positive about this lens. In test shots it shows what it can do, but in the field (which is way more important) it is a lens which takes getting used to before you get good results. It is pretty difficult to get the right focus, and if you missed just a bit you will notice it. I guess I will be more positive about it in the future, but for now I really need to pay attention to my focus, more than on any other lens (except for macro photos)

Handling the lens
The lens feels solid, it is quite heavy but not front heavy. You can stabilize it quite easily and does not feel unbalanced on my D60. The focus ring is quite smooth, not as smooth as my Nikkor lenses, this one uses oil. This is a major disadvantage during cold days because the oil becomes stiff and the lens is harder to focus. However most of the off-brand lenses use oil in their focus mechanisms so I won’t nag about it anymore. The thing is, focus is really critical with this lens. When I first got it and tested it I was a bit carless about my focussing. At first I thought I bought a dog because images were soft. This lens does not tolerate focus errors at all, and the right focus is a bit hard to achieve. It takes a smaller twist on the focus ring than I used to to defocus the lens. This is could be because the focus ring is not precise enough, but I think it’s mostly because it is a longer lens with a faster aperture than I normally use. The lens has a built in hood. It is relatively short and I am not sure how effective it really is. But it probably is better than nothing and it seems like a nice feature. (especially during the rain to keep your front element dry)



Results
Wide open this lens is extremely prone to CA. In high contrast situations you’re able to see it without looking closely. During processing you will find CA everywhere. However it falls within the limits of what’s correctable in my post processing program ( I use Capture NX 2, but I’m sure any other program will be able to cope with it as well)
The sharpness wide open is a small OK. It does not shine wide open. At f/3.5 details start to blur, perhaps also caused by the CA.

without correction

With correction


At f/5.6 the quality starts to increase rapidly. Sharpness increases to great, but CA is still visible, but a lot less. You won’t be able to see it at normal magnifications, only when you zoom in for small precise adjustments (hey not pixel peeping right?) I would be confident to use this lens for a large print for a paid job at f/5.6.

F/3.5

F/5.6


Bokeh is all right, with busy backgrounds it can be distracting, especially branches. The only solution is to open up your lens, or come closer. But a lot of lenses won’t be able to handle it very well. If the background is a bit smoother the bokeh will be all right.



Conclusions
I bought this lens mostly because I wanted something faster than my 70-210 f/4-5.6 for my walk around wildlife photographs. And this lens does the job all right, it is a good lens but nothing special. It is not as sharp wide open as my 70-210, but this one has a faster aperture. I end up using this lens as a regular 200mm f/5.6 lens with some emergency extra F-stops. The reason I do so is because focus is really critical and I just need the DoF to get sharp images. Especially for wild life because the focus ring has more friction than my Nikkor lenses (but as much friction as my other 3rd party lenses) which makes it a bit less precise. And because the real sharpness of the lens is just better at f/5.6 So in conclusion I do recommend this lens, but don’t pay too much for it. The lens is OK, but nothing more. 

Note:
If you want full resolution images, just sent me an email, and I will send them to you. I just don't like to put up full resolution images


woensdag 2 november 2011

my thought process for this photograph




First I wanted to take a normal photograph of a mushroom nearby, but the flies kept bugging me. Then this little shroom caught my attention because flies were constantly sitting on it. I wasn’t sure what I wanted to do and decided to come back to this mushroom since it was near the entrance of the forest.

After 2 hours I came back and the sun was already setting and I cursed myself for being too lazy to figure out what I actually wanted. Than I remembered that I also brought a flash and triggers just in case I might run out of light.
I tried a test shot and realized that the light was too hard for this photograph, good thing I always keep an envelope in my bag as a reflector for macro photography. (if you take an occasional macro photo, put an envelope in your bag the next time you go out. They do not take up any space, but can save you, just like it did for this photo)

Instead of using the envelope as a reflector I pulled it over my flash to soften the light. I put the flash at a 90 degree angle from the camera and started to take some photographs. Than I accidently pointed my camera a bit at the flash and noticed the flare.
I thought it would be cool to make a dramatic photo with flare of a fly looking into the camera. I increased my shutter speed to decrease my ambient exposure to make the photo more dramatic and pointed my camera near the flash with envelope.

Unfortunately the flies would not look into my camera, but when I reviewed my shots on the computer I saw this one looking at the flare.

Thanks for reading,

Koen


maandag 19 september 2011

using M42 lenses on your nikon: Glass vs non glass adapters


Glass vs. non-glass M42 adapters for Nikon

There are a lot of good lenses out there which are sometimes even cheaper than the old Nikkor lenses I normally use. They all have the Pentax screwmount, also known as the M42 mount. Unfortunately Nikon is the worst brand to use lenses on with another mount. Canon cameras, for example, can use an adapter without glass to obtain infinity focus. But because the difference in Nikon cameras between the sensor/film and the lens is longer than with most brands you can not obtain infinity focus without an optical element in your adapter.

However these adapters are not known for their optical quality, usually they go for 30 euros on Ebay, one can hardy expect any quality glass for that price.
In the summer I bought a Helios 58mm f/2 lens because of the “swirly bokeh” it produces when the background is full of these out of focus highlights. I thought that I would become frustrated with the lens if I could not use it until infinity so I ordered a relative expensive one and hoped that because of the price the quality would at least be a bit better.

Unfortunately it would produce extremely soft images, especially with the lens used wide open. After a bit of research I found out that the reflections between the adapter and the lens itself were most pronounced when there was a lot of light coming through the lens.
Stopped down the images look kind off alright, but it was certain that I would never get really sharp results from this combo.
I tried and I tried but I could not get a moderately sharp image wide open, when I shot a portrait, it would like one of these fashion photos were the editor went a bit too far with removing blemishes from the model’s face. And worst of all, somehow the adapter corrected for the swirly bokeh, the only reason I wanted this lens.

Luckily I ordered my adapter from a very friendly seller, and he accepted my complaints and let me return it. At the same time I ordered the non-glass adapter, so I could at least use my lens. The difference between your maximum focus distance and infinity differs per focal length, wide angle lenses suffer the worst from this, while some long telephoto lenses can focus up ‘till 10 meters. A 58mm gives you a maximum focus distance of something like 4 meters. You can make a headshot of your model, but that’s it. (and actually that’s the only way I wanted to use the lens, for portraits)
But because there’s not glass between the lens and the sensor/film the optical quality of the lens remains, and I have my swirly bokeh back.

So although the Nikon/M42 combo is not an ideal one, you can get some cool lenses for a relatively low price, even though (at least I would recommend using a non-glass adapter) you won’t have infinity focus.

Thanks for reading,

Koen 

donderdag 17 maart 2011

macro photography

As a frequent viewer of my stream you’ve probably noticed that I have been doing a lot of macro photography lately. This is mainly caused because I’m out of landscape subjects. Everything is really far away, or I have been there over 50 times with all the possible weather conditions. I just moved to macro photography because that’s a new world to me. And I thought it might be time to share some things I have learned.

  • Bring an envelope, seriously even if your bag is as full as can be there’s always room for an folded envelope. Since your photographing small things anyway you can use this as an reflector. As a bonus you can fold the envelope a bit creating a smaller part which is in the reflected light.


  • Don’t be afraid to get bit. This mind sound a little extreme, but if you’re calm on the ground and pay attention to any biting bugs on your clothes etc. you can keep the amount of bits to a minimum. But what might help is bring a sheet or something else to lay on. And if you’re from the Netherlands you’re lucky, if you’re bit by a red ant you won’t even feel it the next day. (I don’t dare to say anything about other countries though).
    • Be aware for ticks, check yourself after every photo session. To get a bite for a photo is one thing, but it’s something else to get lyme disease.


  • A bean bag is more useful than a tripod. You will be laying on the ground photographing things which are really low to the ground as well. It is hard to get as low with a tripod as you can get with a bean bag, and it’s more comfortable.


  • Shoot in bursts: this might seem weird, but if you don’t want to open up your aperture more / raise your iso but you do want to get a sharp photo of a flower swinging in the wind you can use the burst mode. Because the flower moves less fast at the end of it’s motion and than you will be able to get a sharp photo.



  • Look for points of attention. Because of the large magnification you basically take a landscape photo of a flower. It might not be clear to the viewer where he has to look at, so add something to the flower, like bugs or waterdrops.


  • Raise your ISO before you open up your aperture. Besides that it becomes harder to get things in focus, your DoF becomes also extremely small. Be sure that you use a adequate aperture for your main subject to be in focus.


And as far as I can help you with finding subjects, well just lay on the ground and look through your macrolens/ pimped lens. Virtually anything can become interesting, and there might just be something going on there with the bugs. All the bug photos you have seen here are taken because I was already laying on the ground.



Thanks for reading