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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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15 views

Tamron 18-200mm super wide angle lens

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
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4answers
2k views

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

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
7k 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
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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 ...
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0answers
70 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 ...
3
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9answers
219 views

Do I need to buy anything more than just body and lenses?

I want to buy a body DSLR and custom lens but I'm quite new to photography and I do not know if it's enough or I have to buy something else too (just to make it work and do photos). I know body kits ...
-2
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1answer
91 views

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

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
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1answer
132 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 ...
0
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1answer
109 views

My NIKKOR 55-200mm lens behaves like it is not attached to the camera, even though it is attached

I just purchased a Nikon D5500 with the 18-55mm and 55-200mm lenses, along with one digital high-def 2.2x teleconverter and a digital high-def .43x super wide angle lens with macro filter. The ...
6
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1answer
859 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
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4answers
181 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?
1
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0answers
45 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 ...
1
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1answer
45 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 ...
1
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1answer
56 views

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

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 lose. Probably due to carrying it in a bag very often and taking a lot of ...
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1answer
65 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
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3answers
13k 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
135 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
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4answers
184 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
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1answer
56 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? ...
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5answers
161 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 ...
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3answers
62 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 ...
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5answers
101 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
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12answers
20k 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 ...
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0answers
57 views

“spy” lens PowerShot G16

Hi there i recently bought a PowerShot G16 and wanted to buy a lens that would let me photograph people without their acknowledgement. Ive google with no success. However i did found Opteka Voyeur ...
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2answers
72 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
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2answers
190 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?
3
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0answers
37 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
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2answers
114 views

How do I connect Leica Summicron-M 1:2/50 E39 lens to Canon EOS 5D body?

Could anyone recommend what I need to buy in order to connect a Leica Summicron-M 1:2/50 E39 lens to a Canon EOS 5D body? Do I need a bayonet lens adaptor and if so please let me know which one?
0
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1answer
64 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 ...
38
votes
6answers
134k views

How do I convert lens focal length (mm) to x-times optical zoom?

What is the rule to convert the 'mm' notation to the 'optical zoom' notation? I searched a bit and found this one: optical zoom = maximum focal length / minimum focal length For example a 18-55mm ...
1
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3answers
155 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
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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 ...
2
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1answer
327 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 ...
3
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2answers
226 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
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1answer
43 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.
3
votes
4answers
484 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
68 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
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0answers
50 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?
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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
64 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
47 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 ...
11
votes
3answers
390 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 ...
5
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2answers
76 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 ...
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0answers
22 views
26
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9answers
43k views

Why does fungus form in lenses, and how to get rid of it?

Recently I was using an old Pentax 50mm f/2 that had a quite big green spot, and later I was informed that it was a fungus. A couple of questions raised from this: Why does fungus form inside the ...
10
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3answers
1k views

Does the size of the front glass mean anything?

Considering the Nikon lenses: Prime lenses: AF Nikkor 14mm f/2.8D ED has a huge front glass (●₃), AF-S Nikkor 50mm f/1.8G has a tiny little front glass, deep inside the body (∙₁), AF-S VR Nikkor ...
0
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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
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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 ...