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.

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65 views

I dropped my 15-45 mm lens [closed]

I own a Canon Eos m3 with a 15-45 mm lens. Yesterday, when I was changing the lenses for the first time, I accidentally dropped the lens. From around 1 meter, on stone tiles. :( I checked it and it ...
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111 views

Reason for offset in lens/sensor and tripod mount?

I have noticed that my Canon Powershot G11 tripod mount is more in the center of the body of the camera and not aligned with the lens/sensor. Is there a reason for this? My concern is that as I rotate ...
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3answers
76 views

Lens for 1/2“ sensors, installed on a 1/3” sensor

I want to install a lens built for sensors 1/x" (with 1 <= x <= 3), on a sensor 1/3". I need to have an horizontal field of view of "a cm", when my working distance is "b cm". What is the ...
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1answer
59 views

Whats the best camera about 1000€ DSLR [closed]

i want a allround camera with dlsr . i found one on amazon and want to ask if this is a good camera enter link description here. and whats a good lens fore this camera
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4answers
3k views

Is it safe to push a lens to retract it?

I have noticed. Instead of twisting the zoom ring on my 18-135 DX F3.5/ F5.6 G ED. I can instead push it to the camera to retract the lens using the lens hood as a "handle" How safe is this "...
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0answers
123 views

Extension tubes and focal length [closed]

I have a question about lens selectors like www.baslerweb.com/en/products/tools/lens-selector/ They don't enable to add extension tubes in the parameters. So for a given sensor size, a given working ...
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1answer
128 views

What is Canon RF control ring?

Canon RF lenses have a new feature: a control ring. What is the control ring and what can be done with it?
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3answers
66 views

Canon 100mm f/2.8L with raynox 250 diopter or canon 65mm mp-e?

I am having trouble deciding between these two lenses for insect photography. Please help me decide! Edit: I’ll be taking pictures of live insects using a flash with a soft light diffuser. I probably ...
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2answers
89 views

Will many tiny scratches on lens front element affect my photos? [duplicate]

I've bought a second hand Helios lens online (40 years old). At first sight everything looks fine no fungus haze no dust. Under 45 degree the front element in covered in very very thin scratches like ...
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1answer
28 views

Olloclip Macro 21x lens for iPhone able to shoot objects far away?

Can Olloclip Macro 21x lens for iPhone be used for shooting objects far away? (note: amateur in photography and lenses seeking help from experts)
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2answers
75 views

Emulate Shutter Duration on RAW Photos using Exposure Stacking

So I've been on this problem for about a year now and haven't been able to solve it. I gave up on it a while back, but now I'm researched up and ready to get an answer. I'm trying to fake a long ...
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3answers
396 views

Safety of storing camera resting on lens/resting on back?

I recently bought a Canon EF-S 55-250mm F4-5.6 IS STM for my Canon T7i. This lens is significantly heavier than previous lenses that I've owned and I'm concerned with how I can safely store the camera ...
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75 views

Changed lens of Nikon D5000 to 18–140 mm but pictures are blurry [duplicate]

I recently changed my original lens on Nikon D5000 from 18–55 mm TO 18–140 mm but the pictures are blurry and their borders seem to be blackish. Can anyone suggest any professional guidance?
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192 views

How to find out what part of image is less lens-distorted?

I'm developing an application which uses a Canon DSLR to sequentially shoot an object from different views. Often the object is too big to fit in frame so I have to make more than one series of photos....
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137 views

Is fungal growth still common with modern lenses?

I've been reading up on how to avoid fungal growth in camera lenses. I came across an article that suggested that fungal growth is uncommon in this modern time because the construction of lenses have ...
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43 views

Which type of tripod collar can be used best as a generic 63mm collar?

Tripod collars are always advertised as designed for a certain lens. Searching for them by diameter usually gets you confusing and mismatched results. Is there any widespread type (as in, there is a ...
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5answers
2k views

What are the benefits of the classic f-number scheme?

Classic ƒ numbers are entrance pupil diameter as a fraction of focal length. This seems like a slightly strange choice as exposure is proportional to area rather than diameter. Naively I would think ...
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2answers
222 views

How do I choose between 24-105mm and 24-240mm zoom lenses for the Canon EOS R system? [closed]

After a couple of years with my first DSLR (a Canon T6), I’m thinking about joining the MILC world with the Canon RP (affordable, full-frame-sensor, mirrorless). I like to take pictures while ...
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1answer
96 views

Does my lens have lens corrections table for photoshop?

I have got my first DSLR, Nikon D80 and altough I am happy to get a DSLR with dual dials, pentaprism and best of all, CCD sensor but the lens that came with it has a problem. I have searched the net ...
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3answers
109 views

Using old FD lenses - are they better for EF mount or Micro 4/3s system?

I’m looking to buy a DSLR and I’m stuck between buying a Canon with an EF mount or a camera with Micro 4/3s. I have a good set of old Canon FD lenses (From a 28mm to a telephoto) that I’d like to use, ...
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0answers
61 views

AF Fine-tune zoom lenses?

How do you fix / fine-tune the focus on a zoom lens? Nikon states The D850 can fine-tune autofocus automatically. The results can be used with all lenses of the same type. But does it also mean ...
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3answers
235 views

Why doesn't the aperture change on a Nikon AF 50mm ƒ/1.8D lens? [duplicate]

I am facing problem with a Nikon AF 50mm ƒ/1.8 lens which is attached to a Nikon D7100. Although I can change the aperture from the camera (in M mode) it seems that it is not changing in photos. What ...
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58 views

How to know if a camera lens is for micro 4/3 cameras? [duplicate]

Hey guys I'm seeing this LUMIX G 42.5mm F1.7 ASPH lens but I'm not sure if it's for my micro 4/3 camera:
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26 views

how to find the distance of Object from the camera, which is formed an image size 320,240 [duplicate]

I have an image with the size of (m,n), how to find out that, what distance the objects are taken, the image is taken by ptz camera of the focal length of 4mm-25mm.
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1answer
87 views

My camera shows black and doesnt capture the objects [closed]

My canon camera shoots but doesnt capture the pictures. The display screen is black and doesnt show the picture. It however shows the other settings. What could the problem be
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1answer
140 views

Canon 50mm f/1.8 lens won't go down to f/1.8

Bought a 1.8 lens. Today on manual I realised it won't go down to f/1.8, the lowest is f/2.8, but on other modes it does. The camera is a Canon 5Ds. p.s - just moved to canon so is there a setting ...
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2answers
115 views

Why does my Sigma 10-20mm EX autofocus freeze up, and the camera won't shoot?

When using a Nikon D7100 and Sigma 10-20mm 1:4-5.6 EX DC HSM, the lens locks up or refuses to shoot. This lens doesn't have a Manual Focus or Autofocus button/switch. This lens is in brand new ...
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2answers
124 views

Canon APS-C Budget telephoto recommendation for Sports/Nature [closed]

I need a budget telephoto to use on my Canon 80D for sports and nature. It must replace my Tamron 18-400mm f/3.5-6.3 Di-ii Vc, which I find unconvenient because of its poor AF performance on telephoto ...
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151 views

What type of lens would I need for outdoor shots similar to the wide shots in this music video?

I am trying to find out what type of lens I need to get the shot that's in this music video. I am trying to shoot a video and I have a Canon Rebel T6i with the 18-55 kit lens. I want to be able to get ...
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5answers
4k views

Why can't my custom camera body focus to far distances?

I have built a custom optical device that uses a standard C-mount lens as found on CCTV cameras. Wikipedia states that the flange-to-film distance of a C-mount lens is 17.526 millimetres. I have ...
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3answers
86 views

Protective shell for Nikon 200-500 f5.6 lens?

The Nikon 200-500 f/5.6 lens has a zoom mechanism that makes the lens physically longer or shorter depending on the zoom level, but is there an enclosure that will accommodate the lens across its ...
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1answer
26 views

How different in quality is the Tamron 28-75 Di III compared to the 28-75 Di LD SP AF?

The "III" version, natively available in E mount and released in 2018, is almost twice the price of the older version available in various DSLR mounts. Has anyone here had the opportunity to compare ...
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2answers
160 views

What digital camera should I buy in order to use a Nikon Zoom-Nikkor 35-105mm f/:3.5-4.5 lens?

I have a Nikon Zoom-Nikkor 35-105MM 1:3.5-4.5 Lens f=35 and I'd like to know: which digital camera is compatible with this zoom? thank you lots, Giorgia
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1answer
77 views

What options do I have for very compact or pancake lenses for full frame Sony E cameras?

I love tiny lenses, but I haven't found anything that is smaller than the Samyang 35mm 2.8 that also covers full frame for Sony's E-Mount. Is there any option I have that could make an a7r2 jacket ...
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1answer
70 views

Back-focusing with Canon 7D2 body and Sigma 50mm art lens: is the Sigma USB dock the solution?

I just bought a second hand Sigma lens (50mm Art f/1.4) for my Canon 7D2 body (Mark II). This combination yields a very serious back-focus problem: With no micro-ajustements correction on my body, ...
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3answers
101 views

What techniques do higher-end lenses use to reduce astigmatism at high apertures?

I own a few lenses with a maximum aperture of f/2.8. For this question, I'll focus on two specifically: A Rokinon 14mm f/2.8, which retails around the $500 CAD mark; and A Sigma 24-70 f/2.8, which ...
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2answers
87 views

Is diffraction limited aperture independent of lens?

I have always understood diffraction limited aperture as a property of the camera and its sensor, not of the lens. The camera has a certain sensor size and a certain megapixel count, which together ...
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1answer
52 views

I have a Nikon D60 and two lenses: 70-300 and 18-135. Should I get a 50mm 1.8 prime? [closed]

I have a Nikon D60 and two lenses: a Tamron 70-300 mm f/4-5.6, and a Nikon 18-135 mm f/3.5-5.6. I got all of these things really cheap, and now I want to buy a prime lens. I was thinking about a 50 ...
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2answers
164 views

Nikon 24-85mm (non VR) vs. Nikon 28-70mm 3.5-4.5D

I currently own a Nikon 28-70mm 3.5-4.5D. I've enjoyed the lens and found it on eBay for $45 so it was a steal. From what I understand it was a great compact lens in the 90's that was a "kit" lens but ...
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2answers
147 views

Is IS/OSS necessary when filming with a gimbal? [closed]

I'm currently changing my EOS 7D for a Sony a6400 and since this camera does not have IBIS, I'm also getting a 3 axis Gimbal (ZHUIYN WEEBILL LAB). I'm planning to use this camera for video and photo ...
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2answers
140 views

Do mount adapters change the apparent focal lengths of lenses?

I have a Sony A6500 APS-C camera using a Sony 55-210mm lens. I wanted more reach so I rented a Sigma 18-300mm lens for Canon to use with a Sigma MC11 adapter. While testing this setup, I get the ...
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3answers
147 views

Tamron 100-400 (Canon EF) sharpness

I'm puzzled by how the results that "The Digital Picture" have received while testing the new Tamron 100-400 telephoto zoom lens contrast the positive reviews by the actual users all over the Internet....
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4answers
958 views

Which lens has the same capability of lens mounted in Nikon P1000?

I am a beginner in photography and I have a Nikon D3400. I was impressed with the super zoom of Nikon P1000. But, I came into a conclusion to buy a tele lens rather than going for P1000. P1000 has a ...
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5answers
139 views

Best Canon lens for max depth of field at 70mm?

Recently I photographed some eyewear with my "Canon 24-70 2.8 L" at 70mm (70 mm decision is for a matter of correct ratio between filling the format with subject and it's perspective rendering the ...
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1answer
58 views

Kodak Retina IIS filter thread

I've inherited a Retina IIS, which is the fixed-lens variant of the more common IIIS. I've not been able to find a manual for it, although the IIIS's manual is fine for almost everything. What that ...
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3answers
5k views

Why are Fuji lenses more expensive than others?

I notice Canon lenses start at $125 for the 50mm f/1.8, and the $125-$400 range is filled with many options from wide angle to telephoto, not even counting third party brands. Whereas the cheapest ...
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1answer
63 views

How do I capture northern lights? [duplicate]

I have a Nikon d3400 with kit lens 18-55 mm af-p DX. What is the right camera settings for northern lights photography?
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1answer
83 views

How to get close to 180 degrees with minimal fisheye look on iPhone X or 11?

I'm trying to film my rugby practices with my iPhone and wondering what is the best lens to use to capture the entire field without much that fish eye look? I noticed that the new iPhone 11 (Pro) ...
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1answer
225 views

What does Canon digital lens optimizer (DLO) do exactly?

Recent Canon cameras (example: EOS RP) have a function called Digital Lens Optimizer (DLO). The Canon Digital Photo Professional (DPP) software also has the same DLO feature. Apparently, DLO is ...
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1answer
57 views

How to mount a Vivitar series 1 lens to a Nikon D5300?

What lens adapter would I use to attach a Vivitar Series 1 lens to a Nikon D5300?