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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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3
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2answers
278 views

Got my first vintage lens (Carl Zeiss Jena Pancolar 50mm f/1.8) - what's this lever for?

This was made by the East German incarnation of Carl Zeiss in the 70s. The plastic part to the right is the M42 to E-mount adapter. I'm wondering what the lever in the center of the first image does. ...
0
votes
1answer
45 views

Is the Canon Rebel T3/ EOS 1100D compatible with Nikon Lenses? [duplicate]

Is the Canon T3 compatible with the Sigma 18-200mm F3.5-6.3 DC OS for Nikon? I'm looking around craigslist looking for a compatible lens.
1
vote
3answers
167 views

Which mount is this Sigma lens for?

I have lens that does not fit my Nikon or Canon. Can someone tell me what camera this lens is for?
0
votes
3answers
78 views

Do lens hoods need to be matched to focal length?

Is it true that not all generic lens hoods work on all lenses (provided the filter diameter matches, of course)? I read that the focal length plays a role in it - but I cannot find such readings on ...
0
votes
2answers
78 views

FD Lens with an EOS adapter produces a type of glare after a couple of minutes, is this normal?

I have an FD adapter for an EOS 100D, a 50mm and a 210 Sun Optics zoom lens. They both produce a type of gloss/glare/fuzzy image after around 10 minutes of being attached, is this normal? Is this ...
0
votes
0answers
73 views

How do I clean Micromax Canvas Gold phone camera lens?

I have a Micromax Canvas Gold and the front camera contains some dust particle inside the lens. Is there a way to clean this without opening the phone, or an easy way to do this?
0
votes
0answers
31 views

Searching for autofocus lenses for 2/3" sensors

Can someone name me manufacturers of exchangeable (preferably autofocus-)lenses for 2/3" image sensors, apart from industrial lenses (because they generally dont have autofocus)? Because i want to use ...
0
votes
1answer
69 views

Switching lens on Nikon D3100

I have a Nikon D3100. I purchased a Sigma DG 70-300mm 1:4-5:6 lens for the zoom. I have had very good luck with it, but don't like having to switch every time I want to "zoom". Is there a lens that ...
0
votes
1answer
48 views

How can I prevent condensation on a camera lens?

Is there anything out there to prevent condensation on camera lens? Taking Pictures on a golf course in Florida, camera was out in golf cart at least an hour and a half, when I took pix a lot were ...
0
votes
0answers
22 views

If APS-C sensor crop factor is 1.6 does it mean if I use 300mm lens with 2x teleconverted I'll get 960mm focal lenght? [duplicate]

Basically if I use this combination of lenses on my Canon 70D will it be like having 960mm lens?
5
votes
2answers
81 views

How does sensor size affect the brightness of an image given the same field of view and aperture?

Lets say we have two image sensors, each one with 1MPixel resolution but differing in size. The first sensor has the size 1/3", the other one 1". Each sensor is equipped with a suitable lens (for the ...
0
votes
0answers
18 views

Can I use Minolta lenses on Nikon D3200? [duplicate]

I have several lenses from a Minolta 7000 af. They are a 50mm, 28mm wide angle and a 70-210 zoom. And, I have a new Nikon D3200 now. Will these lenses fit this camera?
0
votes
0answers
15 views

Nikon ED AF 80-200 2.8 LENS not reading on camera [duplicate]

I have a Nikon d7100 and I just bought a Nikon ED AF 80-200 2.8 LENS. The camera will display a FEE error message on camera when I put the dial ring on the lens to the 2.8 aperture. It says on camera ...
4
votes
4answers
571 views

What swirly bokeh technique is this and how can I achieve it?

What is the technique used to capture this image? How can the result be achieved? I know that it can be achieved in a digital darkroom but how can I replicate the effect straight out of the camera? ...
0
votes
0answers
17 views

Are there any good resources that provides information about the focus breathing of various lenses?

Sites like DxOMark provides a lot of information about lenses but they generally don't provide any really usable information about the focus breathing protperties of the lenses. In fact I don't know a ...
1
vote
3answers
123 views

Can I use a D.O. Industries Navitron 50mm f0.95 lens on a Nikon Camera?

I have a D.O. Industries Navitron 50mm f0.95 and would like to use it on a nikon camera. Is there a mount that can adapt this lens to nikon cameras?
0
votes
0answers
22 views

Is there any risk in removing shims from my Nikon macro lens to make the focus ring easier to turn?

The focus ring/barrel on my Nikon 105mm f2.8 micro lens is extremely tight and difficult to turn. There appear to be several shims between the lens barrel and the focus ring. Is this normal? Any ...
0
votes
1answer
63 views

What gear for environmental/lifestyle portraits for website

I'm looking for gear recommendations to shoot environmental/lifestyle portraits for promotional/travel photography purposes on a 2 week trip to the wilderness. For most of the time I will be ...
0
votes
1answer
33 views

Canon 700d with stock lens or cheaper model with better lens? [duplicate]

I'm torn between getting a 700d kit as it is or a cheaper model (ie. 1200d) with a better lens. Mainly plan on using it for short films. Opinions?
1
vote
1answer
83 views

Why don't all zoom lenses have variable f-numbers? [duplicate]

As I understand it, the f-number is a ratio between the focal length and the aperture diameter. A zoom lens can change focal length, but shouldn't the maximum aperture be a fixed size? If so, that ...
0
votes
1answer
34 views

How do I set a lens profile for post-processing distortion correction with an inverted lens?

Recently I started having fun with macro and micro photography by inverting a lens I have (24-85mm) and by combining 2 lenses togheter (70-200mm + inverted 28mm). The results are good (I shoot in ...
3
votes
3answers
138 views

Canon 50mm Macro verus 100mm Macro Lens

I'm considering purchasing either the Canon 50mm Macro or the 100mm Macro with IS. From what I've researched the only real difference is how close you have to be to your object to take the pictures. ...
0
votes
0answers
65 views

Nikkor AF-S DX VR 18-200mm focus stops at 0.9m, can't set it to 0.5m

I have a Nikkor AF-S DX VR 18-200mm and I have a problem with the focus ring. It goes fine from infinity to about 0.9m,then it just stops there and I can't go down to 0.5m no matter how much I turn ...
11
votes
3answers
418 views

Why are superzoom lenses small but giant telephoto lenses huge?

This week I've read two news stories about two different camera lenses that can magnify things that are very far away. The first is the Nikon Coolpix P900, which is a point-and-shoot camera that ...
0
votes
0answers
16 views

Nikon D5300 Vs Nikon D3300 and additional lenses (beginner) [duplicate]

I am going to buy my first "serious" camera. The brand I have zeroed upon is Nikon. Particularly, I am interested in D5300 and D3300 with a price difference of 150 USD. I have heard that lenses matter ...
1
vote
1answer
53 views

Why is my Sigma 75-300mm lens causing a “there's no lens” error on my alpha mount Sony?

What can I do to get my Sigma 75-300mm telephoto lens to fit my Alpha mount Sony? The lens will attach but the camera says "there's no lens". I used this lens on a 7000 Maxxum 35mm film camera.
0
votes
1answer
65 views

Travel lens for LUMIX GH2 [closed]

I am a beginning photographer and own a LUMIX GH2 with the following lens: HD 14-140, LUMIX G Vario 1:4/7-14 (wide angle) and a pancake 20 lens. I am traveling to Europe and need to take a single lens ...
0
votes
0answers
117 views

What is the best lens to shoot the Milky-Way on a crop camera? [duplicate]

I own a Canon 100d and i like to photograph the stars, I'd like to have a wide angle lens to capture the most of the milky way i can. Possibly as cheap as possible and have really good quality. Thank ...
-1
votes
2answers
376 views

Difference between Canon 18-55mm IS II and IS STM? [duplicate]

I am a newbie into the photography world and would like to buy a DSLR. I am currently shooting with my phone and usually take photos with auto mode. While choosing for a camera I have narrowed my ...
1
vote
3answers
207 views

Why did manufactures stop including DOF scales on lenses?

Seriously why? I hate it and I hate memorizing it or check my phone app for the depth of field of the current aperture. I find it so useful in old lenses. The DOP preview doesn't help that much (IMO) ...
1
vote
1answer
125 views

Does lens resolution matter when it comes to high resolution sensors? [duplicate]

I've recently seen the news about Canon's 5ds and 5dsr with their 50mp res sensors. Now I've read on some other forums that you would need some L lenses developed recently ( 5 years) or those woth ...
5
votes
1answer
163 views

What prevents a f/1.8, 24 mm - 70 mm or similar range zoom lens from being made? [duplicate]

I see that it is common to have professional grade lenses such as 24-70mm lenses made at f/2.8. After using a 50mm/1.8, I was wondering what would prevent a more versatile zoom lens to be made that ...
1
vote
2answers
195 views

Why do camera phones have lenses of inferior quality?

I've heard that mobile phone cameras have lenses of inferior quality to those in DSLRs and point and shoot compact cameras. Is this true, and if so, why?
1
vote
1answer
73 views

Why doesn't the zoom ring on my Vivitar 75-205mm lens turn?

I bought a Vivitar 75-205mm zoom macro lens for Minolta MD yesterday without paying much attention to the seller's details: I bought it as a gift to someone important for me. She only has a 35mm ...
1
vote
1answer
125 views

Why do I get blurry pictures when I take a lens attachment off?

I bought a Canon D3300 bundle. This is my first dSLR. It came with a couple lenses. On Easter, I decided to use a wide angle lens to get all the action. Now I can't use my camera without this lens ...
1
vote
2answers
113 views

Old SLR Sigma 18MM on a DLSR Canon

I've bought a Sigma 18MM 3.5F Ø72mm Autofocus for a Canon SLR. The thing is that I've got a Canon 40D so I made a mistake I think. The lens only works when setting the aperture on 3.5 any higher ...
1
vote
1answer
65 views

Why can a lens still function when subject to severe physical degradation?

Consider the following two modifications to a camera lens: Obstructing the about 75% of the lens's front element with an opaque filter as shown here: https://www.youtube.com/watch?v=43W159gPpdQ. ...
0
votes
3answers
237 views

Equivalent focal length and aperture of 150mm medium format lens on a 35mm camera

I'm mounting a Hasselblad Sonnar C 150 mm f4 on a 35mm sensor (43mm diagonal) camera. What is the calculation to get the new angle of view and equivalent focal length? Does this also affect the ...
0
votes
2answers
148 views

Nikon D5100 says “lens not attached” in automatic mode (works in manual) [duplicate]

I'm a total beginner with my Nikon D5100 and i'm trying to shoot in auto mode. When I attach the AF-S Nikkor 18-55 mm lens, the camera says "lens not attached" unless I have it in M (manual) mode. I ...
1
vote
4answers
191 views

How can I compare different lenses in terms of quality?

I am currently looking to buy a new lens to replace with kit lens, having an extra reach, faster, better image quality and also better video quality. Without buying all the lenses I have shortlisted, ...
0
votes
0answers
24 views

Nikon D3200 lens upgrade [duplicate]

Hi I own a Nikon d3200 with a basic 18-55mm kit lens. Now i want to buy a 55-300mm lens mainly for its zoom purpose. I want to know if i can take portraits using this lens both indoor and outdoor. How ...
0
votes
2answers
275 views

Is the Nikon 55-300mm a good choice for indoor and outdoor portraits?

I have the most basic model of Nikon DSLR, the Nikon D3200, with the 18-55 kit lens. I'm thinking of buying the Nikon 55-300mm lens, mainly for its zoom purpose. Is it a good lens? Can I take portrait ...
1
vote
1answer
418 views

How to differentiate between a VR and VR II Nikkor lenses (e.g., 55-200 VR and 55-200 VRII)?

I want to know how can I differentiate between VR and VRII lenses. Nikkor has been providing a lens of same focal lengths 55-200 with VR and VRII. Below is the VR II product pic from Nikon's website. ...
1
vote
2answers
188 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 ...
-1
votes
2answers
35 views

Video tutorial about how lenses work [closed]

Is there a video tutorial explaining how camera lenses work and how they generate different visual effects?
1
vote
3answers
129 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 ...
1
vote
2answers
283 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
0answers
41 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 ...
0
votes
2answers
124 views

Issues in long exposure photography [closed]

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
184 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 ...