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Questions tagged [lens]

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.

3
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3answers
234 views

I have the Samyang FE 14mm lens which has a nondetachable lens hood - is it possible to still use a ring adaptor on this so that I can use a filter?

And how would I know which size adaptor I need? There are no markings on my lens. I'm looking into buying a square filter holder to try help with this. Thanks.
0
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1answer
96 views

How different lenses affect photo quality? [duplicate]

Suppose I have these two lenses: - Tamron SP 24-70mm f/2.8 Di VC USD G2 Lens - Tamron 28-300mm F/3.5-6.3 Di VC PZD And suppose I have used them both on the same full frame camera, in the same tripod ...
1
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2answers
2k views

What's the equivalent of a 85mm portrait lens on Sony A6500 (APS-C)?

When conventional wisdom refers to 85mm as the perfect lens for portraits, it refers to 85mm for a full frame sensor. Is this right? In that case, is it correct to apply the crop factor and say a 55mm ...
11
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3answers
1k views

Cleaning the rear element of a lens?

I just purchased a used Tamron 45mm lens, and its rear element is a bit dirty. Am I allowed to clean the rear element using microfiber and lens cleaning solution + lens cleaning tissue?
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0answers
32 views

Finding X,Y,Z values in an image by knowing the focal length and apeture [duplicate]

What is the systematic procedure to find x,y,z values of an image by knowing the focal length of the camera lens ?
12
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7answers
4k views

How to know you've outgrown your equipment?

I have only started shooting recently, as a hobby. I use Canon EOS M100. I use a EF to EF-M adapter to use EF 50mm f/1.2L USM. The camera seems to have trouble focusing and light metering (with auto ...
7
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2answers
182 views

Why is the aperture of this old lens showing as centered blue glare?

I just bought a old Minolta MD Zoom 35-135mm 1:3.5-4.5 lens together with two old Minolta SLRs to get into film photography. Before using actual film I adapted it to my Canon 600D (using a no-name MD-...
11
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3answers
627 views

How do I choose a lens for a “glow in the dark” indoor/lowlight event?

I was recently asked by a friend to take to pictures at a “Glow in the dark” event center meaning that it’ll consist of low light environment. I have a 320 EX III speedlite that I can use, but I would ...
6
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2answers
120 views

Can using a high resolution sensor and downsampling compensate for a soft lens?

In this question Does super-sampling produce good results? the difference in quality between using a high and low resolution sensor of the same size and then downsampling the high resolution one gives ...
6
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5answers
281 views

Looking for an excellent telephoto lens that can also shoot bad photos at 30mm if need be [closed]

I'm going to be traveling to Cuba, and am looking for a good lens that I can keep on my camera without needing to change it. I was originally looking at the Tamron 18-400mm, but the images don't seem ...
2
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2answers
270 views

Is Tokina “Exchangeable” lens compatible with both Nikon & Canon DSLRs?

Can someone please explain if following Tokina "exchangeable" lens (Tokiana 14-20mm F2) would be compatible with my Nikon D500? If yes, will it perform as if it was a dedicated Nikon mount? Please ...
5
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3answers
206 views

Why would lens be much longer than its focal length?

I accidentally saw Nikon 17-35mm f/2.8 lens and noted that it is rather large for its focal length. Here's the first review of this lens search offered - looks like it's 107 millimeters long. Given ...
1
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2answers
234 views

Can I use a Canon FD lens with a T6/1300D?

I am currently using a Canon T6/1300D. Earlier today got the Canon FD 28mm f/2.8 in the mail and my adapter. However, whenever I try using the camera with this lens it says F00 and everything is out ...
3
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2answers
229 views

Security: What lens is needed to capture a person's face from 1,000ft away?

My family owns property that has MANY trespassers; the property is over 50acres, and on it is a huge abandoned rock-quarry. If I go there I have to kick people out more than 50% of the time and if I ...
2
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3answers
287 views

Will a 400mm lens on a Canon 7D help me get better detail of birds in flight than my Panasonic FZ1000?

I am using a Panasonic Lumix FZ1000 with a built in 25-400 lens for bird-in-flight photography. My pictures are coming out good with the FZ1000, I’m just not able to get the size and detail of far ...
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1answer
143 views

How do these three 100-300mm lenses for Canon EF mount compare?

I’m trying to decide on a 100-300mm constant aperture lens to complement my current kit. I am considering the following options Canon 100-300 f5.6 L Tokina 100-300 f4 Sigma 100-300 f4 Which of these ...
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1answer
131 views

Optimal all-encompassing lens set for Sony a6000 [closed]

I am fairly new to the world photography and, albeit Short on practice, i have been trying to pour as much research as possible on all sides (technical, composition, Gear). It is truly a wonderful but ...
2
votes
1answer
174 views

Right ND for filter size for Nikon 24-85 mm lens [duplicate]

I have a Nikon lens NIKON AF-S 24-85 F/3.5-4.5G ED VR. And I'd like to get an ND.10 filter. What's the right filter size for that lens? And what brand would you suggest
1
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2answers
306 views

Is the Nikon 18-55mm f/3.5-5.6G AF-P DX lens compatible with the D7100?

I have a Nikon D7100. Is the Nikon 18-55mm f/3.5-5.6G AF-P DX lens compatible with this body? Are there images made with this lens & body combination available?
1
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1answer
292 views

Can I mount a Nikon 50 mm f1.8 series E pancake lens on an Nikon D7000?

Hello I have a Nikon D7000. I would like to know if I can mount a Nikon 50mm f/1.8 Series E old manual lens on this body? Will the meter system work with it? I also have a Vivitar Series One 70mm-...
0
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2answers
173 views

Photography from geostationary orbit

Satellites are at 38000 km from earth. What practical lens will allow me to resolve 1 km (5.43 arc-sec) and the earth subtends roughly 20 degrees at the camera.
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3answers
2k views

Is having only a 35mm lens on APS-C sufficient for travel shooting in NYC/Washington DC? [closed]

I am taking a trip to New York city next week. I would be visiting the usual tourist places - Statue of Liberty, Top of the Rock, One World Observatory, Brooklyn Bridge etc. I am also planning to take ...
1
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4answers
201 views

How many steps to walk forward to get equal range to 200mm with 70mm lens?

I'm newbie in the world of lenses ... I have 24-70mm 2.8. I never got a chance to use 70-200mm. One friend told me that you just have to walk two or three steps forward to get 200mm equal range with ...
2
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2answers
597 views

What should I expect from Canon EF 24-70mm f/2.8L II USM?

What should I expect from Canon EF 24-70mm f/2.8L II USM? Hey guys, I'm a noobie around here so I hope I don't annoy too many of you with this question. At the moment I have a Canon EOS 80D and ...
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votes
3answers
676 views

24-200MM lens for Nikon D850?

I am looking for any one (single) lens that can cover the 24-200MM range for my Nikon D850. Constant aperture is not needed, however it would be nice to have. Vibration reduction would also be a nice-...
2
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1answer
149 views

Telephoto lens will autofocus but not shoot

I have a Nikon D3400 with two stock lenses. My Nikkor 18-55 mm lens performs well. My 70-300 mm lens, on the other hand, developed an issue in the last month. The autofocus of the lens works well, but ...
3
votes
1answer
284 views

Can anyone help identifying this (close-up or what) lens?

T-mount on one side and something strange (similar to Arri PL? on the other)?
1
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1answer
100 views

Proper lens for filming walking mouse in 33 inch-long cat walk [closed]

For biomedical research, I need to video a mouse walking through a 33 inch catwalk with a high speed camera (Basler acA1300-200um, USB 3.0, sensor size 6.1 mm x 4.9 mm). Because I will later analyse ...
0
votes
1answer
98 views

What are better lenses for portrait photography (1.8D or 1.8G) for Nikon D750? [duplicate]

I am planning to start home-based wedding photography business and the compiling a list of gear to purchase.I have planned to purchase D750 as my primary body but I can't seem to decide on which lens ...
5
votes
4answers
263 views

A thin camera and a thin lens with a large glass element

After seeing these 3D designs, I was wondering if a camera that is thin could possibly have such a large piece of glass in the lens (given the lens piece doesn't expand when powered on). As far as I ...
2
votes
3answers
1k views

What zoom 70-300mm lens should I get for my Nikon D3300? [duplicate]

I'm a total beginner when it comes to photography. I have a Nikon D3300, and want to branch out to a zoom lens. I did a little research and found a lens I wanted, the 70-300mm f/4-5.6G. I found one on ...
3
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2answers
482 views

Use a fisheye lens on APS-C camera as ultra wide angle

Is it a good idea to use a full frame fisheye lens, like a Canon EF L 8-15 f/4 USM Fisheye (or any other similar) as ultra wide angle lens on an APS-C camera? In my understanding, the APS-C will just ...
2
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3answers
244 views

How to measure distance of exit pupil to sensor plane

Is there an experimental way to determine the distance of the sensor plane to the exit pupil? (acuracy a few milimeters with distances between 10-70 mm) Why I want this In my lab I am working with a ...
1
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2answers
1k views

70-300 AF-S Lens Won't Autofocus on one of my D7100's

I recently purchased a used Nikkor 70-300 AF-S VR lens used from B&H that is in "Excellent" condition. I have 2 Nikon D7100 bodies that I shoot with and both autofocus just fine with all of my ...
0
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1answer
125 views

Should i buy a lens or a new camera? [duplicate]

I have a sony dslr camera thats about 10 years old, it doesn't take as good quality photos as newer cameras. I want to know if i should buy a lens or a new camera. What affects the quality more?
2
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1answer
80 views

Do analog to digital lens adapters exist (to pass EXIF data to a camera)?

What I'm envisioning is a lens adapter that could be used for multiple (film-era) lenses on a modern digital camera, but would allow you to enter your custom lens info into the adapter so that, when ...
6
votes
2answers
468 views

Are there cons of buying medium-format lens for 35mm film SLR?

Right now I have Pentax ME Super SLR camera and I want to buy some telephoto lens. Additionally, I plan to buy medium-format camera in some (near) future. In consequence I wonder: Is it reasonable to ...
14
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3answers
233 views

Japanese camera and lens naming conventions

I've noticed a naming convention which seems to come up on a number of different makes of camera and lens, and I'm curious whether this is related to the Japanese language, or just something which has ...
1
vote
2answers
1k views

Tamron lens focusing problems?

I own a Tamron 18-270mm F/3,5-6,3 Di II VC PZD lens - a fabulous lens, but since I got it (around Christmas time), the autofocus has been playing up; see below image. EXIF is as follows: 270mm, ...
5
votes
1answer
119 views

Does the difference in the color of the Schneider-Kreuznach logo on these large-format lenses indicate any other differences?

What is the difference between the two lenses pictured below? They are both same brand, same focal length, etc.... The only thing is the color of the Schneider font on them is different. Is one of ...
6
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2answers
320 views

How can I seal the sticky rubber on a aging Sigma lens?

I have been gifted an old Sigma lens from around the early 90s, but as is common with the soft touch rubberised coating on lenses of this age, the material has started to degrade and has become sticky....
0
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2answers
430 views

What camera fits this a Osawa MC 1:4.5 f=80~205mm lens?

I found a lens and I was wondering what camera fits it? Does it fit a canon 1300? & also how can I tell if it works or not? (If that’s possible) (As I found it on the ground). I don’t have a ...
5
votes
1answer
180 views

What can I do if the “straight keys” in my Nikon lens are bent?

I have a Nikon DX SWM ED 18-55mm Autofocus lens that broke down. It got stuck and I decided to take the lens apart. It turned out that the flare cutter had come out somehow. Now the problem is with ...
0
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1answer
547 views

Canon EOS M not recording

My canon EOS M doesn't want to record or take any pictures. I press the record button and nothing happens. Also, when I go to adjust the aperture it says I can't because it says "no lens attatched. Is ...
3
votes
4answers
441 views

What kind of lens to photograph a 1 mm object?

I want to photograph an one mm (or slightly less) object. I have a Canon EOS 80D. What lens should I use, or is there any other way to accomplish this?
2
votes
1answer
434 views

Will 50mm f1.4 and 85mm f1.8 lenses produce the same bokeh, given the same framing?

I have recently upgraded from a DX Body (Nikon D3300) to a FX body (Nikon D750) and also I have Sigma 70-200mm f2.8 & Sigma 150-600mm Sport lenses. While I was using the DX body, I had a Nikon ...
3
votes
1answer
311 views

Why is my camera overexposing with a new lens?

The aperture is set to f/4.0 and ISO 100 in automatic mode. I'm new to more advanced photography so please be patient! I just purchased a new lens - the h-fsa45200 (Panasonic Lumix G Vario 45-200mm) ...
1
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2answers
379 views

Canon 80D or Nikon D7500 for travel photography [closed]

I have a trip coming up, which will involve me shooting landscapes and portraits, so I'd bring a superzoom and a portrait lens) I have a Canon 80D (with a Sigma 18-250mm and a 50mm f1.8) and a Nikon ...
2
votes
3answers
967 views

Dating a Canon lens without date codes - just an eight digit serial number. Is it doable?

I'm currently trying to sell my Canon EF-S 17-55 f/2.8 IS USM and thought in the advert I would try date it. On the underside of the barrel there is an eight digit serial number. On the lens mount ...
5
votes
2answers
870 views

Buying a lens with light haze?

I’m trying to build a full-frame DSLR kit on the cheap by buying used. When looking at old lenses on eBay (for example, the Canon 100-300 L), they are often described as having a low amount of haze. ...