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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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16
votes
10answers
31k views

Which prime lens for Pentax?

My girlfriend is buying a Pentax K-5 (I already have a Pentax DSLR so we thought it made sense for us to be able to share lenses), and she's not sure about which lens to get with it, so I've been ...
-1
votes
1answer
30 views

Which sensor “full frame” vs. APS-C (1.6 crop) gives more distortion?

Which sensor "full frame" vs. APS-C (1.6 crop) gives more distortion using the same lens? I mean, would a 10mm lens on a full frame camera show more or less distortion than if it were on an APS-C (1.6 ...
11
votes
4answers
4k views

How wide can a lens be before it begins to produce distortion?

Some lenses will produce distortion near a photo's edges (lines that should be straight begin to curve). Fisheye lenses definitely do this, and some ultra-wide lenses will do this too. I like wide ...
0
votes
0answers
9 views

Full Frame vs. APS-C (1.6 crop factor) in ultra wide angle distortion?

Which sensor "full frame" vs. APS-C (1.6 crop) gives more distortion using the same lens? I mean, would a 10mm lens on a full frame camera show more or less distortion than if it were on an APS-C (1.6 ...
-1
votes
2answers
24 views

Video tutorial about how lenses work [on hold]

Is there a video tutorial explaining how camera lenses work and how they generate different visual effects?
6
votes
2answers
5k views

Why is my Nikon d3100 with 18/55 lens suddenly fuzzy?

I was taking some inside pictures with my Nikon D3100 and 18/55 lens when, all of a sudden, the lens started to work funny -- the more I zoomed in on the subject, the fuzzier the picture looked in the ...
0
votes
3answers
70 views

Will a macro extension tube eliminate the cropping of an APS-C lens on a full-frame sensor?

I understand using an A-mount lens intended for APS-C sensors on a full-frame camera results in cropping of the image. According to a tech at Sony, you lose 1/3 of pixels (APS-C is a 2/3 sensor so it ...
2
votes
3answers
66 views

Is a quartz lens necessary to prevent UV blocking on full spectrum enabled cameras?

I have read that in order to operate a "full spectrum" camera properly, so as to not block light in the ultraviolet portion of the spectrum, that one needs to acquire quartz lenses for one's camera. ...
0
votes
0answers
22 views

Can I use a Samyang 75-300mm or a Soligor 90 - 230mm lens on a Pentax Film Camera?

I have two Pentax cameras (ME Super and a K1000). Which of these lenses will work with either or both of the cameras? Soligor 90-230mm Phoenix/Samyang 75-300mm They both fit on each of the ...
1
vote
2answers
69 views

Can add-on lenses for mobile phone cameras improve the image quality?

I have an iPhone 5s. I wonder if using an additional lens increases the image quality or not. Or does it just help in zooming?
0
votes
2answers
78 views

Issues in long exposure photography [on hold]

Yesterday i was trying to shoot night photography and my camera was on tripod. I tried to shoot with 70-200mm f2.8 tamron lens and the picture looks blurry I don't know why since the camera on tripod ...
0
votes
2answers
110 views

Canon EOS M: Do these lenses make sense together?

Today I purchased a Canon EOS M to replace my meanwhile almost 10 year old 400d. I was under the impression that I was just buying the kit with the EF lens adapter, so I also bought two lenses. It ...
23
votes
5answers
7k views

How to capture the scene exactly as my eyes can see?

What settings of my DSLR camera will emulate the scene exactly as I can see through my naked eyes? I think it's not possible to get the contrast and colors exactly as my eyes can see, and it may vary ...
1
vote
0answers
34 views

What (if any) are the differences between Minolta's SAL500F8 and Sony's SAL500F80?

I would love to buy one of these autofocus 500mm f8 lenses, but information about these lenses is sparse, and I haven't been able to find anything at all about if Sony made any changes to the lens ...
0
votes
3answers
1k views

Moving up to the next lens from 55-200

I do mainly amateur wildlife shots especially whale watching and some football photography just as a hobby. I currently have canon EOS 400d with 18-55, 55-200 and macro lenses. What lens would you ...
0
votes
1answer
77 views

What order to use range extending tubes in and the effect on aperture

I have a 500mm mirror lens, at f/8. I have 2 hollow tubes (their order wont matter) and 1 tube which is a "Vario converter" and can be rotated from 2x to 3x (this moves a lens about 1cm along) I ...
0
votes
3answers
886 views

How do I convert focal length to maximum distance?

I would like to know whether there is any relation between focal length and distance. For example, what is the max distance I can shoot from a 55mm-300mm lens?
0
votes
1answer
245 views

Converter and lens combination to try on sony a7 or a6000

I have bought an a6000 with the kit lens, and it takes nice pictures but I miss some things that I was able to do with my Canon DSLR and old lenses. I have kept some of my Canon lenses. Should I buy ...
0
votes
1answer
68 views

Will lenses of a different brand work on a Nikon DSLR? [duplicate]

I am new to photography and I am planning to buy a Nikon D3300 (with 18–55 mm kit lens) to start with, after reading through the reviews. But one question lingering on to my mind even after reading ...
0
votes
0answers
15 views

Nikon D-5200 was working fine, but now shows “Lens Not Attached”? [duplicate]

My D-5200 Nikon has worked fine (camera and lenses) until yesterday when it said "Lens Not Attached"? What can I do to troubleshoot this issue?
24
votes
2answers
3k views

What characteristics make a lens good or bad?

When reading lens reviews on the Internet, I often find subjective statements about the image quality that a lens produces, such as "good contrast" or "sharp". The problem is that I don't think I am ...
0
votes
1answer
69 views

Is the Nikon 80-200 f/2.8D ED outdated?

I have been reading up a lot of information on the internet about the AF 80-200mm f/2.8D ED lens as I'm seriously considering purchasing one. I own a D7000 that came with the 18-105mm kit lens. I ...
0
votes
1answer
33 views

Is Sigma AF 70-300 f/4.0-5.6 DG APO Macro compatible with Nikon D5100?

Is the Sigma AF 70-300 f/4.0-5.6 DG APO Macro compatible with the Nikon D5100 camera?
1
vote
1answer
37 views

Will an EMF AF Confirm M42 Lens To Canon EOS adapter actually confirm with the Helios 44-2 58mm f/2?

Just bought my first vintage lens on e-bay, the the Helios 44-2 58mm f/2 and now I am looking for an adapter for it to mount it on my Canon 6D. I noticed that the EMF M42 adapters can be had with and ...
2
votes
3answers
456 views

Why is my Canon 55-250 IS lens blurry at focal ranges beyond 100mm?

I recently purchased a used Canon 55-250mm IS lens and it works nicely at 55mm(even with lower shutter speed, and f/4 aperture), but turns out quite blurry at longer focal lengths, even with a shutter ...
50
votes
6answers
14k views

What is “angle of view” in photography?

I read on the Lens Buying Guide @ neocamera: Focal-length determines the angle-of-view seen through a lens for a given sensor-size. With a full-frame sensor a lens gives the same angle-of-view ...
0
votes
0answers
66 views

Projector Design and lenses

I am working on a project where I need to project a single image onto an object, Originally I was looking at the digital projector route but due to cost and complexity this has been ruled out. I found ...
2
votes
1answer
281 views

Nikon 16-85 VR focus noise problem?

My 16-85 VR is doing some weird noise during focus, manual or auto. It's like an hiss. I asked in a local shop and they said it can be some microdust inside the lens. But I'm a little worried it can ...
0
votes
0answers
90 views

Canon L Lens producing higher noise/grain? (24-70mm f2.8 II)

I just purchased a brand new 24-70mm f2.8 II for my upcoming trip. I've been testing out this lens for the past few days, and have noticed something that I'm a bit confused by. It seems by my tests, ...
0
votes
2answers
68 views

Focusing issues with Nikon 18-35mm f3.5-4.5D on D3200

I have a Nikon D3200 and I have used in the past year and half a 35mm f/1.8 G DX prime lens . I have rented several other lenses and I also have a 50mm 1.8G prime too (I'm sure that some of you will ...
0
votes
2answers
2k views

How can one use a reversing ring with Nikon G lenses?

So, this blog (credit to mattdm for pointing it out) says: Firstly, when you turn the lens around you obviously lose the CPU connection between the lens and the camera, so say goodbye to ...
0
votes
1answer
105 views

Buying lenses from Japan on eBay? Good or bad?

I have been looking into Canon's older 28-80mm USM metal mount lens. I have heard that it is a very good lens for the money, but when I looked for it on eBay, the only places that seem to sell it are ...
0
votes
2answers
69 views

Reverse ring sizes

I recently ordered a reverse ring and turn out i ordered a wrong one. My camera is 7100 but i ordered D700 from ebay, i bet it won't be exchange but can i order something else to put it on my lens, so ...
0
votes
1answer
2k views

How is the quality of the Sigma 18-300 DC Macro lens?

I'm considering the less expensive Sigma 18-300 DC Macro lens vs. the (way) more expensive Nikkor 18-300. Would I be losing the gains by buying a 24 MP Nikon 3200 if I went with the Sigma?
3
votes
2answers
3k views

How can I do astrophotography with my 70-300mm lens?

I got a Nikon 70-300mm lens as it was on discount. I want to know if I can do astrophotography with it? I want to maximize the use of the lens. I wanted to get a 34-300 mm lens, but it was expensive. ...
0
votes
2answers
712 views

Is a Canon 50mm 1.4 lens only meant to focus close range?

Ok, so I currently shoot with a canon Rebel which of course has a 1.6x crop factor. My primary lens is Canon's mid-level 50mm f/1.4. I love this lens for close up portraits and can get a very sharp ...
10
votes
9answers
21k views

Can I shoot a photo with my DSLR without the lens on?

I thought it would be interesting to see what kinds of effects I could get by shooting a photo without any lens on my DSLR. However, when I take the lens off, it tells me that no lens is attached ...
1
vote
1answer
146 views

What is the difference with ED and IF-ED lens?

I am confused with the difference between Nikon AF-S DX 55-200mm F/4-5.6G Telephoto Lens and Nikon 55-200mm f/4-5.6G AF-S VR DX IF-ED Telephoto Zoom Lens Can some one clarify me on this?? Thanks ...
1
vote
1answer
83 views

What lenses can produce a clean starburst effect?

I have seen several examples of a beautiful lens effect, naturally due to a stopped down aperture, but not like a lens star I have managed to create myself - it is so clean. Here is an example: ...
4
votes
2answers
705 views

How can I fix a Nikon DX 18-135mm with an aperture stuck open?

I am currently on a trip and I brought an 18-135mm lens and a 35mm prime as my two lenses for the trip. When I took my zoom out of my backpack off the plane and put it on my camera, I immediately ...
0
votes
0answers
28 views

Zoomlens “pops” around a certain focal length. What failure is my lens showing?

For a while my Sigma 18-50 f/2.8-4.5 lens has been shaking the viewfinder image once in a while. After asking a related question I settled for the explanation that it was the image stabilisation ...
3
votes
3answers
493 views

What can I do when autofocus suddenly starts blocking at around 2m on a Nikkor AF-S 28-70mm 1:2.8 D?

I had this lens for quite a few years now, it used to work as expected. I didn't use my stuff for a few months, maybe 6-8 months. I just bought a D600 and tried to use them. The AF does not work as it ...
0
votes
2answers
145 views

What lens is best for a red carpet community event?

I've been asked to take pics of the 2nd annual Youth Film Festival in a tiny town. There are only 4 entrants. I've advised my friend/organizer that I have no experience (I almost always shoot only ...
1
vote
1answer
62 views

What is the main difference between the Nikon 55-200mm VR lens and the newer version the VRII?

Despite the obvious differences, price and weight, what is the main differences between these two lenses? Nikon 55-200mm VR f/4-5.6 - 334g ~€150 Nikon 55-200mm VRII f/4-5.6 - 296g ~€300/350.
1
vote
2answers
135 views

How to accurately calculate size in image using relations and a reference

OK so the relation math is easy enough. If you know the size of an object, say a 12" ruler in the image, and you put the ruler flat against another object like a door. You take a picture of the door ...
3
votes
3answers
158 views

Is the Gorillapod sturdy enough for super-zoom lens and long exposure?

I am interested in buying the Gorillapod SLR-Zoom to be used as a travel tripod. My camera is a D3300 together with a 35mm and a super zoom lens (still haven't decided which one to buy, but something ...
0
votes
0answers
16 views

What would be the benefit of a fast lens for my Sony A6000? [duplicate]

I bought a Sony A6000 recently and with it I bought the kit zoom lens SEL55-210mm F3.5-6.3 and prime SEL16-70mm F4 Zeiss. I mostly do photography during my leisure trips and generally capture ...
0
votes
1answer
46 views

How to tell the difference between the Canon 18-135mm and the STM version?

I am looking to buy the Canon 18-135mm IS STM lens off eBay, and want to know if there are any outside visual differences that I can look for to make sure I don't get ripped off and buy the non-STM ...
4
votes
4answers
3k views

Best all-around ~$600 standard zoom lens for Canon? [closed]

I have a Rebel T2i, I was wondering what standard zoom lens is the best around $600. I'm mainly shooting landscapes / cities / peoples. I've done some research and came up with 17-50, 18-55 from ...
2
votes
2answers
131 views

How can I compare 'super-zoom' lenses to make up my mind which one I should buy?

So I am currently looking to buy a 'super zoom' lens to be used along my 35mm for travelling. I have already compiled a number of different suitable lenses within my budget range and focal length. I ...