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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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8
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5answers
5k views

What CCTV lenses can I use with Micro 4/3 and adapter?

I keep hearing things about using CCTV C Mounts hacked into a Micro 4/3 camera using an adapter. Does anybody have any experience with this? Can any ebay lens work, or is the C-mount not universal? ...
0
votes
1answer
55 views

telephoto canon lens for indoors [closed]

I am wanting to purchase a new canon telephoto lens specifically for shooting in poor light conditions indoors with the subjects far away. Can you suggest a good option please?
1
vote
5answers
5k views

Which is the better lens: Canon 28-105 or 28-135?

I have a very old (18 years or so) Canon 28-105 3.5-4.5 USM lens. I bought it for my Elan 2e and then 7NE, and then used it on my XTI. I thought it took great pictures. Now i'm shooting the Canon ...
3
votes
6answers
3k views

Canon 70-200 F4 L USM (non-IS) vs Tamron 70-300 VC

Please help, I am very torn between these 2 lenses in my budget. I am looking for a telephoto lens to use primarily outdoors for photos of my 3 year old, husband playing football and longer focal ...
0
votes
5answers
4k views

What pancake lenses are available for Sony NEX camera?

As a DSLR owner, I am currently looking for a compact interchangeable lens camera and I currently hesitate in buying the Sony NEX-5N or the Panasonic GX1. I realize the lens options for the Micro ...
1
vote
1answer
85 views

What can you do when your lens' focus ring becomes too loose?

One of my lenses I always carry (Olympus Pen lens, I fit it on a Sony NEX), has a focus ring that is becoming a bit too loose. Probably due to carrying it in a bag very often and taking a lot of ...
1
vote
1answer
67 views

How to replace the zoom ring on a Nikon 18-200 lens?

The zoom ring (the rubber-band part) on my Nikon 18-200 is a little stretched out. What is the best way to replace this? I already had to remove the black sticker on the front of the lens when the ...
3
votes
3answers
557 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
96 views

what trick do you use to have minimum stress on the lens while hiking?

My camera bag has two positions lens facing upward or downward. Most camera bags will have this position when mounted on your shoulder. I am attaching a picture of mine: So like most camera bags, ...
7
votes
10answers
52k views

What should I do about Canon PowerShot “Lens error, restart camera”?

I've had a Canon PowerShot A1100 IS camera for almost a year now. About a week ago, I went on a trip, took pictures the whole trip, everything was ok. When I got home, and tried to turn the camera ...
2
votes
1answer
91 views

Can I use film that's 20+ years old?

I recently bought a Minolta film camera and it had some film with it. The film is dated 1991 - 1994. Can I use the film?
0
votes
1answer
84 views

Where to get replacement black sticker for the front of a lens?

On a recent trip the filter threads came loose on my Nikon 18-200, and some of the screws that held it in place where caught in the black sticker that covers them. I peeled off the sticker, and ...
0
votes
2answers
74 views

What's wrong with my Sigma 18-250mm lens?

I don't know what happened with my Sigma lens. Basically when I mount it on my camera everything is dark and auto focus cannot focus. It's like not enough light is coming though. When I put a ...
0
votes
0answers
41 views

UV filter stuck on lens [duplicate]

Just bought an expensive Nisi UV filter, screw it in on my lens, and now I can not take it off... Why these things happen with almost every filter? Any suggestions how can I take it off without ...
0
votes
1answer
146 views

Does anyone have any information on Canon's VL mount regardng pinout and protocol?

I currently have a canon cl 8-120mm f/1.4-2.1 lens which uses the VL mount. Canon's goal appeared to have been to make this a standard system similar to the Micro Four Thirds system. See ...
21
votes
4answers
2k views

Is it physically possible to build a long zoom (17-300 mm for example) at an aperture value of around 1.4 or 1.2?

I'm curious if the physics allow a company to build such a lens of course with good IQ, minimal color aberration, maximum sharpness, and little to none lens vignetting or edge softness
0
votes
3answers
116 views

Why don't we have a single lens e.g. say a 18-200 f/1.2 lens for the SLR camera? [duplicate]

Right now we have multiple interchangeable lenses. So why don't we have a single lens, say a 18-200 f/1.2 lens? Are camera manufacturers deliberately avoiding that or it is that it is physically ...
3
votes
4answers
2k views

What can cause blurry and out of focus images on a Nikon D5300 in no flash mode?

I am using a Nikon D5300 with 18mm-300mm lens. My problem is that the camera is not working properly in "No flash" mode - in all other modes it's working well. Mostly I am using manual settings, but ...
0
votes
0answers
32 views

Tamron 18-200mm super wide angle lens [duplicate]

I purchased this lense, it says that it is a wide angle lense also. I would like to know hiw i can tell for sure, is it a wide lense or not?
6
votes
4answers
2k views

Where can I rent a camera and lens online within the US? [closed]

I'm considering buying a Canon 5D Mark II camera with Canon EF 24-70mm f/2.8 L USM Lens. But before I buy, I would like to rent it to try it out. Where can I rent camera gear online, and have it ...
20
votes
3answers
8k views

What makes a Carl Zeiss lens so special in a smartphone?

There are smartphones on the market that have a focus towards photography. Some are equipped with a Carl Zeiss lens. I have looked into Wikipedia, which tells me that they are a brand who produces ...
6
votes
3answers
4k views

Lens with small scratches on the front element - how do they affect IQ?

I am looking to buy a CANON 28mm 1.8 EF lens. I found an offer, significantly discounted, of a lens with small scratches on the front element. The offer is very tempting. Here is a photo posted by ...
6
votes
3answers
5k views

Is the Canon EF 70-300mm f/4-5.6 IS USM suitable for wildlife photography?

I got my first DSLR about a week ago (600d) + af-s 18-135mm kit lens, but I want another lens with greater focal length. So I thought about this lens: CANON 70-300mm f/4-5.6 IS USM How does it ...
0
votes
0answers
71 views

600D Lens Don't Move back and front

My camera lens recently started losing focus. When I press the shutter halfway, the lens just doesn't respond and adjust focus. The flash flickers an electric sound and light but then the camera ...
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votes
1answer
102 views

What setting do I use for a 70-300 lens? [closed]

I have a 70-300 lens and I tried taking a picture of a ship on Lake Michigan. The Picture was blurry and I was using a tripod, What settings do I need to have my camera set on to get nice clear ...
0
votes
1answer
167 views

How to remove oil from aperture blades?

If you go on ebay or other second hand places, you'll see a fair amount of lenses that have oil on the aperture (particularly on older lenses). I've done some reading and it looks like this oil is ...
6
votes
1answer
880 views

Does Nikon or anybody else have an equivalent on the Canon MP-E 65?

The Canon MP-E 65 can do macro shots up to 5:1. I've not been able to find anything like this for my Nikon system and you can't mount a Canon on a Nikon at all. Do Nikon or any third party make a ...
1
vote
4answers
217 views

Should I use a 24-105 or a 70-200 lens for photographing a high school marching band?

Ok, I am an amateur photographer and I will start being the marching band photographer for my high school. I will get a Canon 7d soon, but I'm told it has poor low-light capabilities, which is a ...
73
votes
12answers
6k views

Why are lenses always round in shape?

Why are lenses round in shape although the image sensor is not? Why they can not be square or something matching the shape of image sensor?
2
votes
0answers
94 views

Can you use a Krasnogorsk lens (from the 16mm movie camera) on a Sony NEX camera?

I found links to adapters on eBay, but you can never really tell if they're legit... I'd love to know if someone has tried to pair these two together, either a Sony VG-30 type camera which has E-Mount ...
0
votes
1answer
70 views

What lens should we use to shoot large products in a small studio?

I work for a company that sells events and trade show booths. We have a studio to shoot the products, but unfortunately, it is on the small side. I would need a wide angle lens to shoot the products. ...
0
votes
3answers
16k views

So my iPhone 6 camera lens is as wide as my full frame 35mm DSLR lens?

I am trying to understand what is the deal with "full-frame" and what difference it makes, so did a silly test: I sat at my bed and aligned the iPhone 6 camera with the door of the room and took a ...
3
votes
2answers
157 views

50mm and 100mm macro lenses difference at the minimum focus distance?

So I bought a Kiron 105mm f2.8 1:1 lens recently to be used with my Sony a6000. I know that the difference between a 50mm macro and a 100mm macro is how close you can get to your subject, that is with ...
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
1answer
116 views

What differences are there between the Opteka 6.5mm and Rokinon 8mm fisheye for Nikon?

I have heard these two lenses are the same. Are they just made by the same company (Samyang) or are the physically the exact same lens? If not, what differences are there, physically and optically? ...
1
vote
5answers
172 views

Are prime lenses sharp across the whole frame while zoom lenses are soft in the corners?

Somebody told me that there is a difference in sharpness between a zoom lens vs. prime lens. A 58-200mm will give sharp focus in the center of the frame but blurry performance at the corners, while ...
0
votes
3answers
71 views

Canon 600D - Next lense for travel, landscape, architecture [closed]

I have the Canon 600D with the 10-18mm f4.5-5.6, 18-135mm f3.5-5.6 and 50mm f1.8. Now I am looking for my next lens which I do not want to spend more then 1000$. I was thinking of 70-200 f/4, but I ...
0
votes
5answers
131 views

How to work out the base “zoom magnification” of a lens? [duplicate]

I've come from 3x Zoom magnification land and am having a hard time adapting to all these complex "mm" systems. I'm thinking about buying some lenses to enhance the range of zoom of my Sony A5000 ...
18
votes
12answers
21k views

How does the lens diameter influence photo quality?

I have tested two different 50mm lenses in my camera. One was a Nikkor 50mm ∅52mm. The other one was a Sigma 50mm ∅72mm. I took some pictures with both lenses using the same setup for aperture and ...
0
votes
2answers
79 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 ...
3
votes
2answers
217 views

How can I tell if a Canon lens is made in Japan?

Are there physical differences in or on Japanese Canon lenses that would indicate they are from Japan? And how do I identify a Canon lens that was manufactured in the US?
4
votes
0answers
46 views

Where can I find information on the Pentax Q lenses serial protocol?

I'm searching for detailed information on the Pentax Q lenses (any, but I'm especially interested in the 5-15mm-lens) serial protocol, which controls focus/zoom/aperture. So far I have found nothing ...
0
votes
1answer
74 views

Nikon D3100 Squeaky Lens Problems?

I've been using my Nikon D3100 and it all worked fine, until today, I tried to take a picture and pushed the button and started making a noise like the lens was working when I had it set to Manual I ...
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?
13
votes
4answers
2k views

What can cause an “Err 99” on my Canon DSLR?

Err 99 Shooting is not possible. Turn the power switch to <OFF> and <ON> again or re-install the battery. Every now and then when shooting with this lens, I'll get this error ...
3
votes
2answers
280 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.
4
votes
4answers
578 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
3answers
79 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
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?