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A photographic lens is used to focus the light onto film or a digital sensor. Many cameras have interchangeable lens systems, allowing the photographer to choose the type of lens to use.

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23
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5answers
2k views

What are the most notable differences between Canon and Nikon lenses?

I'm currently considering to buy one of the next generation enthusiast DSLRs. Either a Canon EOS 60D or the slightly more expensive Nikon D7000. I'm quite new to the SLR discussion but I know there ...
1
vote
1answer
243 views

Best camera + 2 lenses to take on around the world backpacking trip? [closed]

A little background: I used to take photographs all of the time and even had my photos appear on the cover of local magazines and inside of local newspapers when I was in high school. I've also ...
3
votes
1answer
186 views

How can I vertically shift a Tilt-Shift lens in vertical (portrait) position?

I have a Canon TS-E 24mm f/3.5L II mounted on a Canon 5D Mk3. When I want to shoot a building tall enough without introducing distortions, I put the camera in landscape position, I shift my lens up ...
6
votes
2answers
177 views

Lens rental opportunities in the US

Okay, I am trying to edit this question. I am going to New York very soon. I have never been in the US, so I have no clue how lens rental work. There are many sites offering lenses for rental, some ...
0
votes
1answer
69 views

Is there a budget fish-eye for Pentax Q system?

I currently use a Pentax Q camera with the standard lens and I was wondering if anyone knows of a budget fish-eye lens that will fit the Q. I know Pentax does an official fish-eye lens but it's around ...
10
votes
8answers
2k views

Would the 40mm pancake or 50mm prime be better for street photography with a Canon APS-C camera?

I have a Canon EOS 600D, and I already have 18-55mm,55-250mm. I plan to buy a new lens for street photography. I already have picked out one of the following lenses: 40mm STM(pan cake). EF 50mm ...
19
votes
4answers
9k views

Why is the aperture ring removed from new Nikon lenses?

Maybe I'm wrong, but I notice that Nikon's newer lenses don't have an aperture ring. For example, an older AF 35 mm f/2D is now replaced by AF-S DX 35 mm f/1.8G, or AF 50 mm f/1.8D is replaced by a ...
6
votes
6answers
4k views

Would the Tamron 18- 270 mm F/3.5-6.3 Di II VC PZD make a good choice as my second lens?

I have a Canon 50/f1.8. I am looking for a zoom lens. After much research, I have zeroed in two lenses as my second lens: either Tamron 18-270 mm F/3.5-6.3 Di II VC PZD or Canon EF75-300mm f/4-5.6 III ...
26
votes
7answers
1k views

Is it ok to breathe on the front glass element of a lens to fog it and clean it?

Nikon specifically recommends not breathing on the glass elements to clean them as harmful acids in the breath can damage the coatings on the glass. However, I've read on many other websites that it ...
3
votes
2answers
248 views

How can you photograph backlit scenes without getting lens reflections/flare?

I've been doing a lot of late afternoon photography and the weather has been pretty clear so the sunset has been a large influence over the pictures I've been taking. One problem I've been having is ...
-1
votes
2answers
214 views

Best and cheapest lenses for wildlife photography? [closed]

What are the best and cheapest lenses for wildlife phototgraphy? I recently got a Nikon D3100 and would like a new lens for wildlife photography. Any suggestions would be helpful!
3
votes
2answers
184 views

How to compare the speed of lenses taking transmission into account?

When comparing the speed of two lenses, you almost exclusively hear about the maximum aperture. This of course makes sense, since at a certain lighting condition, a larger aperture in general allows a ...
5
votes
3answers
4k views

Why does my Canon 7D get blurry pictures with a 70-200mm f/2.8 IS (series 1)?

I'm wondering if it's normal for a Canon 7D with its crop sensor to get unsharp pictures with a 70-200mm 2.8? I just bought a used 70-200 and it seems a little bit blurry. Maybe it needs calibration? ...
16
votes
2answers
812 views

How do lens lineups vary across Mirrorless camera systems?

We often hear advice like ""choose your lenses and then choose the body that matches". We have great information on DSLR systems at How much do lens lineups vary across DSLR platforms?, but what about ...
0
votes
4answers
2k views

Tamron 70-200 Di VC vs Canon 70-200 II

I'm looking to buy a tele zoom, and was set at the amazing Canon 70-200/2.8 II, mostly for shooting indoor/concert type photography. But since its such an expensive lens I thought I'd check if there ...
6
votes
1answer
1k views

Which Lensbaby Sweet 35 or Edge 80 effects are harder to reproduce post-processing?

I want some suggestions from Lensbaby users. I have the plastic optic, double glass and fisheye optic. I use the composer. The recent new optics: Sweet 35 and Edge 80 seem very intriguing and I ...
9
votes
3answers
526 views

What's the best bang for your buck to improve low light portrait shots: Lens, Flash or Body?

I want to get better action shots in low light indoor conditions. I've got a Canon T1i (APS-C size) with 3.5-5.6 18-55mm lens, and am thinking about a flash upgrade, a lens upgrade, and/or body ...
3
votes
3answers
4k views

Why is my Nikon lens suddenly extremely dark?

I was going to take pictures of my daughter at the race track, and when I put my lens on my camera (as I have done several times before) this time it was very dark and didn't seem to work properly. I ...
0
votes
1answer
125 views

Why doesn't my Sigma lens autofocus if the subject is initially way out-of-focus?

I have a Sigma 150mm F2.8 EX DG OS HSM APO Macro lens mounted on my Canon 6D. Even if AF mode is set to minimum-to-infinity range, if my subject is way out of focus (too far or too near), like, say, ...
17
votes
3answers
939 views

Why don't cameras have autofocus points in the edges and corners?

On all the DSLRs I've used, there are never any autofocus points near the edges and corners. Why is that?
3
votes
3answers
184 views

Differences between canon 17-85mm and 18-55mm

I was given a 450d with a canon 17-85mm lens, it has USM and image stabilzing. It has always seemed okay to me but after a few years i have decided to upgrade to the 700d, which has now come with a ...
1
vote
2answers
377 views

How to fix Canon 17-40mm F4L loose zoom ring

I bought a used Canon 17-40mm F4L a while ago, and I just noticed it had the Zoom Ring kind of loose and also a lot of my pictures that were taken at the widest were 19mm instead of 17mm
7
votes
7answers
2k views

Which lenses are best for macro and for birdwatching (both Canon and Nikon)?

Now I have old Sony A100 DSLR + Minolta AF 24-50/4, Minolta AF 50/1.6, Tokina ATX 80-400/4.5-5.6, ... My camera is old. In near future I am going to buy new DSLR. I think it will be Canon or Nikon. I ...
1
vote
1answer
314 views

Is the Panasonic Leica Summilux DG 25mm f/1.4 as good as the name implies?

I’ve got a soft spot for fast, normal lenses, and while I normally shoot with a Pentax DSLR, Panasonic’s Leica DG Summilux 25mm / F1.4 ASPH has had me sneaking drooling glances at Micro ...
11
votes
4answers
768 views

Other than speed and weight, what advantages might a prime lens have over a zoom at the same focal length?

At the same focal length, apart from speed and maybe weight, what other advantages does a prime lens like the 50mm have over a zoom lens like the 24 - 70mm? To put it better, If I set my 24-70mm lens ...
0
votes
2answers
126 views

Why human eye doesn't exhibit aberrations?

Eye's optical system is composed of single lens and is capable of producing very sharp results, but if I use single lens (monocle) with my camera I'll get soft image.
3
votes
2answers
2k views

Can a drop of a camera+lens cause AF calibration issues on either — or both — the lens and the body? What are the mechanics involved here?

My question is, if you drop a camera, and you think you might have an AF issue, what are the mechanics involved that might cause a mis-calibration? I can imagine that the lens has movable parts -- ...
60
votes
11answers
21k views

Is there a noticeable difference between 1.8 and 1.4 prime lenses?

I have been shopping around for a prime lens for my Nikon D50. I noticed that the 1.8 is hundreds of dollars cheaper than the 1.4 AF-S. What will I gain for that cost difference? Is it really ...
1
vote
2answers
403 views

Does wide angle equivalent in crop sensor skew image?

I see many posts on both this forum and elsewhere the discuss the use of a wide angle on a crop sensor. For example, they discuss how at 14mm lens is 14mm on a 35mm film or full frame, but with a ...
4
votes
1answer
237 views

What is meant by 'centering quality'?

I'm reading lens reviews and I have encountered the term 'centering quality' a few times (e.g. http://www.photozone.de/sony_nex/720-sony50f18nex?start=1). What does this term mean? What are the ...
17
votes
10answers
4k views

Why don't more people use fisheye lenses as a cheap wide angle lens?

From my understanding, a fisheye lens usually has a coverage of 180 degrees or close to it. Given the extreme coverage and the availability of software that can turn fisheye images back to a ...
0
votes
1answer
240 views

Looking for suggestions for an wide angle lens for Nikon FX [duplicate]

I recently upgraded to full frame by getting a Nikon D600. I would like to know what would be an ideal wide angle Lens for this FX camera of mine. Nikon wide angle lenses are very expensive, so I ...
10
votes
6answers
2k views

How to select lenses for sports photography?

I would like to get into sports photography, and would probably want a better telephoto lens so I can get better close up shots. What other factors should I keep in mind as I make my choice? Does IS ...
3
votes
1answer
81 views

What are the downsides of converting FD(n) lenses to EF mount?

Are there any downsides of converting an old FD(n) lens to the EF by means of actually replacing the mount with a EdMika or similar? The lens will become a manual focus and manual aperture control ...
3
votes
2answers
154 views

What to look for in a wide angle lens?

My girlfriend owns a D5100 and I own a D7000 for which we both share lenses (or try to when appropriate). I own the 18-55 kit lens, a Nikkor 50mm 1.8g (I may consider buying the inexpensive 50mm 1.8d ...
9
votes
3answers
892 views

Mark I vs Mark II Canon L Lenses

Are there any Canon L lenses in which one iteration was significantly better than the other? The price for older Canon L lenses are significantly cheaper than mark II lenses and I was wondering if it ...
0
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2answers
75 views
0
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1answer
63 views

Exact specification of N1-CL1 Nikon Closeup lens

On nikon site (and everywhere else) I've been unable to find any exact specification of tne N1-CL1 filter lens -- only thing I need is to know the exact focal distance of this lens (or dioptres, or ...
3
votes
6answers
421 views

What equipment should two very amateur photographers bring on a very short safari?

My girlfriend and I will be going on a 3 day/2 night safari in Kenya (Masai Mara). I'm looking for an inexpensive way to upgrade our equipment in the best way possible. We know next-to-nothing about ...
0
votes
1answer
325 views

Camera and lens for shooting furniture

I have to buy a camera to shoot high quality photos of furniture. The furniture will be both indoors and outdoors. What kind of lenses do I need? I was considering a Nikon D3200 or a D5200 for the ...
1
vote
2answers
128 views

What causes the image in the view finder to tilt when using manual focus with my Canon 18-135 IS lens?

I'm having the exact same problem as this guy is having:http://forums.usa.canon.com/t5/Lenses/Canon-18-135mm-IS-Lens-Jumps-during-manual-focus/td-p/44493 Problem description: I'm having a problem ...
0
votes
2answers
93 views

Is a Sigma AF 28-80 an useful addition to a Nikkor 35-105 macro?

I'm experimenting with photography and I'm on a budget: I'm using a Nikon D70 and I already have a Nikkor AF 35-105 f/3.5-4.5 macro and a 50 mm f/1.8 E (manual focus). Now I found a cheap Sigma AF ...
2
votes
3answers
272 views

Is 50-200mm (APS-C) a good zoom range for a single lens for people, buildings, and distant objects?

Assuming I do want to take pictures of things like people, buildings and things further away, but not too far away. Does it sound reasonable to buy a 50-200 mm lens, when just considering the distance ...
1
vote
1answer
91 views

How come AF changes the way my flash works?

When I select AF instead of M on my 55-135 canon IS Lens, mounted on my Canon 700D, the flash sort of pops before I finish pressing the button and then again after I press it and it makes this scary ...
2
votes
2answers
218 views

What does the aperture range in a lens name mean?

Regarding lens descriptions, what does the relationship between aperture range f/3.5-6.3 and focal length range 18-270mm mean? How does this work?
1
vote
1answer
421 views

Effective zoom of Sony 55-210 lens (e-mount for NEX series camera) [duplicate]

According to Sony's website this lens has a zoom factor of 3.8. I currently have an 18-55 lens that came with my NEX-3F that has a zoom factor of ~3.1. Since the 55-210 pics up where the 18-55 leaves ...
1
vote
1answer
168 views

What can I do about Pentax superzoom 18-270 autofocus problems?

I use a Pentax K200 and have been satisfied with the original Pentax 18-250 superzoom, for travelling, outdoors, family types of use. However the autofocus gradually failed, the motor going to and fro ...
0
votes
2answers
71 views

Canon PowerShot sx500IS filter size

What is the filter size of the fixed 30xIS Canon Zoom Lens found on the PowerShot SX55IS?
0
votes
1answer
210 views

Is this attempt to make lens measurements and focal lengths more intuitive correct?

I know next to nothing about cameras (other than how to push the shutter button). Up until a few days ago I thought of zoom as simply a multiple (e.g. my Canon S95 has 3 or 5X optical zoom) and had ...
1
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1answer
115 views

What are the distinquishing features of 50mm prime lenses for Sony?

I have a Sony SLT A58 and the standard 18-55mm zoom, and am thinking to go for a 50mm prime — but I am not sure which is the best one for me. Are there other manufacturers besides Sony which develop ...