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Canon Inc. is a prominent manufacturer of cameras and lenses including EOS DSLRs and PowerShot compact cameras.

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Why and when would you consider Canon 17-55 lens over 24-105?

If I'm to buy a cropped sensor Canon camera for personal needs (family shootings, treveling etc - probably 75% outdoors some macro like + portraits + streetshootings + landscapes, 25% indoors mostly ...
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7answers
5k views

How does the Canon EF-S 15-85 IS USM compare to the EF 24-105mm L as an all-around lens?

I am looking for a upgrade from my kit lens to a lens with much more potential, a lens that would be an all-rounder for me. After some research I ended up with these two in the final list: Canon ...
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2answers
1k views

How will a Canon EOS M serve as a second/alternative body?

With the release of Canon EOS M, the only question I have in mind is how will it perform as a second/alternative/backup body for prefessional/semi-professional photographers? We can use our existing ...
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5answers
8k views

Is there a Canon equivalent of the Nikon D3100? If so, what is it?

I am looking to buy an Entry level DSLR, and had decided on Canon system due to lens availability with friends, and general popularity amongst my peer group here. I am planning on general ...
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4answers
478 views

What “influences” the ISO sensitivity of the camera?

In comparing, let's say Canon's 600D and 100D (which are by explanation from my store guy, practically the same camera) I noticed that they have different ISO sensitivity declarations. Since, they ...
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1answer
382 views

Canon 450D: whats the number to the right in the viewfinder?

I have wondered for quite some time now what the number to the outer right in my 450D's viewfinder is. Example: 30" 2.8 |''|''|''|''| 100 6 what's the 6 stand for?
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3answers
609 views

Upgrade advice pentax to canon + which canon 50D/60D or 7D

So I have a Pentax K20D/18 - 250 tamron which was the unexpected result of a court case with a shop over broken K100 Super 2 years back. While I love the camera itself I've become frustrated with it's ...
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5answers
2k views

Are third-party alternatives to the Canon 70-200 f/2.8 worth the price savings?

Has anyone used the 3rd party 70-200 lenses? Are you happy with the quality, or do you wish you had saved up for longer and got the Canon?
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1answer
589 views

What are these big Zeiss lenses?

I'm not sure how to ask this other than "What are these big lenses?" One of the comments mentions that they might be Zeiss. I'm not sure how to tell. via http://instagram.com/p/T71mQVRzZX/
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3answers
641 views

What lenses can I mount on Canon that will give me a different, exotic look for portrait photography?

I was usually working with Canon lenses (the 85mm f/1.2, 8-15mm, 16-35mm), but recently, I've got myself the Zeiss 100mm f/2, and it blew me away. I never thought it possible, but it, while making ...
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4answers
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Are there any good pancake lenses for Canon EOS DSLRs?

I've always liked the thought of having a super-thin ("pancake") lens for my Canon DSLR, for when I just want to take my camera out with as little bulk as possible. I'm not even too concerned about ...
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9answers
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What differences exist between third-party and official lenses for Canon APS-C DSLRs?

I am just another guy who just taken up photography as a social hobby who enjoys taking pics of everyday life, social events / parties & some portraits. Need camera for short overseas trip (2-3 ...
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2answers
333 views

Is it necessary to use a full-frame camera to get the best out of my Canon EF 180mm f3.5 L?

I do mostly handheld macro photography and I currently own a Canon 40D. I want to buy a new camera and I don't know what is the best choice. My goal is to get the best of my lens. So I'm not sure if ...
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4answers
1k views

How limiting are the line-of-sight requirements of Canon's optical wireless flash system?

I have a Canon 7D and 580EX II Speedlite, and am trying to make the jump into flash photography, particularly portrait work. I understand that the 7D's wireless trigger works by line-of-sight. Will ...
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7answers
7k views

What causes this sort of RAW file corruption?

I came home from a recent trip to Gettysburg with almost 1500 photos. Among them were a handful that appear to have been corrupted, as shown below. It was hot during the hikes -- ambient temperature ...
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2answers
597 views

What would be the best technique to create a 2.39:1 ratio mark on the display of my camera?

I have a Canon 60D camera which display I need to mark a ratio of 2.39:1 on. Basically, I need this to know the safe area of video when recording. I thought about taping those two lines over on the ...
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10answers
47k 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 ...
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3answers
4k views

Does the Canon 60Da offer significant advantage over 60D with infrared filter for astrophotography?

I am looking to buy a new camera to upgrade from my 1000D. I found the 60D to meet most of my needs but came across the 60Da variant when trying to make a decision. The price difference is ...
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2answers
2k views

Canon 50mm f/1.8 vs Canon 28mm f/1.8 (vs Sigma 30mm f/1.4)

I have the nifty-fifty and I am in love with the kinds of images it can produce, particularly when it comes to portraits. I really enjoy the lens, but I have one problem; it is a little bit too tight ...
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3answers
3k views

How can I drag the shutter on a Canon 50D (or any Canon body)?

I want to drag the shutter (second curtain sync) on my Canon 50D using either a speedlight, or via a wireless remote flash. The 580 EX/EXII will trigger when the shutter opens, and again when it ...
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2k views

Why does my old Quantaray flash not work on my newer Canon DSLR?

I have an older Quantaray QTB-7500A flash with the Canon TTL module. I used this with my old Canon EOS Elan 35mm which died a few years back. I recently bought a Canon Rebel XSi, because I could use ...
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2answers
2k views

What on-camera geotagger do you recommend for a Canon DSLR?

I have been looking for a solution for geotagging with my Canon DSLR (T2i). It seems the most common solution is to use a separate standalone GPS unit and adding the tags in later during processing ...
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5k views

Are there any drawbacks to buying a white box item?

My friend just bought Canon T3i body only and he is looking for a lens. We decided Canon's 18-135mm would fit him as all purpose lens as a beginner. Here is the lens we found... but it says 'White ...
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Can more than one focus points be selected?

Now a days, almost every DSLR camera comes with many focal points 9, 11, 22 etc. Many of them provide us with settings to chose manual focus point while shooting images, apart from the auto-selection ...
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2answers
853 views

Pentax to Canon Adapter

My dad has an old Sears KS-2 + 50mm f/1.7, which from a bit of research seems to use a Pentax K-mount. I've looked around a bit and found a Pentax to Canon adapter, which says it supports ...
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2answers
732 views

Why can only certain Canon lenses be fitted with an extender?

Is there a reason only certain lenses can be fitted with an extender? I'd really love to be able to fit the extender to some of my cheaper lenses.
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3answers
2k views

What flash slaves can be used with a Canon Speedlite 600EX-RT?

My current flash setup is a standard shoe mount but I've been thinking about getting a remote. I've been drooling over the Speedlite 600EX-RT. It uses radio to control slaves, which is nice (longer ...
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1answer
10k views

Can Canon DPP create HDR images from 3 RAW images?

I have installed the Canon Digital Photo Professional, which came with the T2i\550d. Can DPP create an HDR Image from 3 RAW Images? If not, is there a good, free software for that?
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1answer
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What are the differences between two generations of Canon EF-S 55-250mm f4-5.6 IS?

I was going to buy Canon EF-S 55-250mm f4-5.6 IS lens from eBay. But I saw there is a another lens available as MK II with same focal lengths. I googled to find difference between above lenses, but ...
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3k views

What is EOS iTR AF?

I have read references to this feature on some Canon DSLR cameras and am wondering what benefits or uses it has.
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26k views

What is the difference between AI Focus and AI Servo autofocus modes?

Recently I bought a Canon 60D and I am uncertain about when and how to use/activate the AI Focus and AI Servo functions. I understand the One Shot autofocus function for still subjects. You press ...
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801 views

Where are in camera ratings on the Canon 5D MkIII stored?

The Canon 5D MkIII introduced a new featured that lets you rate images by using a dedicated rear button. I am interested in finding out where in the EXIF data that this rating is stored. I wasn't ...
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1answer
16k views

Why are the “MG” Canon printers better for photography then the “MX”?

Looking at consumer level printers, but wanting to get the best bang for my buck, I noticed that Canon has two separate lines of all-in-one printers. The "MG" line they advertise as "Photo All-In-One" ...
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545 views

Hidden features of CHDK

What are some of your favorite/most used lesser known features of the open source Canon firmware CHDK? Have any helpful scripts you used?
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716 views

Special Care for my Canon in the Alps

I have a Canon XSi, with the kit lens and a Canon 50 compact macro with the converter. At some point before the trip I also plan on buying a telephoto. This coming January, I will be headed to ...
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558 views

How can I check for damage to my lens from impact with a window?

I was taking a photo at an airport when I accidentally zoomed my Canon SX40HS into a window. The impact wasn't super hard, but there was a thump. I cannot see any visible damage, but how can I check ...
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Is there any software available on Mac OS X that can remotely control my Canon G10?

I'd like software to remotely (via USB tether) control my G10 from my MacBook running OS X 10.6. This software seems to do exactly what I want, but for Windows: ...
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243 views

How is Nikon's PF optics different from and similar to Canon's DO optics?

Nikon has just announced a new 300 mm lens featuring a new technology called "PF" or "Phase Fresnel." This has been compared to Canon's existing DO (Diffractive Optics) lenses such as the 400 mm f4 ...
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1answer
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What are the differences between AF/metering chips for M42 lens Canon DSLR adapter?

I'm looking for an adapter to use an M42 lens on a Canon DSLR. I was wondering if anyone knows the difference between the following types of chips : 2nd generation AF 3rd generation AF EMF AF ...
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1answer
821 views

How to turn off the LCD while taking long-exposure photos?

I'm using a Canon SX210 IS with CHDK. I know that capturing long exposition photos is a "battery draining" process, but it could be better. Why should the LCD's backlight be on while taking the photo? ...
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3answers
500 views

CHDK - Network scripting?

I was thinking about having my Camera be able to 'auto' download images, and among other things when my Camera is connected to the Computer. I also wanted to be able to run different Scripts through a ...
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6answers
2k views

Is it important that the Canon 1DX isn't specified to autofocus with lenses slower than f/5.6? [closed]

Seeking the lens market AND the related info WRT Canon 1D X, I found some things which seems concerning: 1st, a note from Canon's Chuck Westerfall (see here) saying: “AF is unavailable on the ...
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3answers
10k views

Why doesn't a 58mm diameter filter fit on EF 50mm f/1.4?

I have bought a HOYA circular polarizer filter 58mm (CIR-PL) for the Canon EF 50mm f1.4 (said to be 58mm filter size). But the filter doesn't fit. Did I miss something? It doesn't even fit on a 18-55 ...
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4answers
784 views

Should my collection of older Pentax lenses be a deciding factor in my first DSLR purchase?

First post on here so I'll try and put a bit of background. I'm brand new to taking "proper" photographs and want to get started in landscape photography as a hobby after seeing some great pictures ...
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5answers
860 views

Which one wide-medium lens to buy as the main lens for an outdoor wedding?

I have my first solo wedding gig coming up and I'd love recommendations for almost any lens (under $1500, preferably) to go on my 7D. My Sigma wide-angle is basically no longer usable. I have some ...
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4answers
2k views

Is it worth spending more to buy the Canon 500D vs the Canon 450D? [closed]

I would like to get into photography but I'd like to gather more information about the topic first. I'm thinking about buying a starter D-SLR camera, and am leaning heavily towards a Canon (most of my ...
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6answers
1k views

Canon EF 28-135mm f/3.5-5.6 IS USM or Canon EF 85mm f/1.8 USM?

I'm looking to purchase a new lens. The types of photos I take are: Portraits Candids Street Random objects here and there Architecture Occasional landscape when on vacation They are ordered in ...
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7answers
4k views

Why pick DPP over Aperture?

My standard workflow is: take pictures in RAW -> import into Aperture -> append metadata info -> go through shots and filter out the bad ones -> do basic adjustments in Aperture -> use Nik plugins or ...
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3answers
5k views

Why is the 18 - 200 mm lens so expensive compared to equivalent alternatives?

I have been looking at various lenses and I found that that the 18-200 mm lens is pretty expensive (be it Canon or Nikon) when compared to the combination of the lenses 18-55 & 55-200. Is there ...
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383 views

Is there an advantage to choosing the Big Two (TM) entry level dSLRs over competititon? [duplicate]

Is there an advantage, that Canon or Nikon's entry level dSLRs hold over their competition ones (notably Sony) for a young enthusias who wants to learn more but is currently, and probably won't in the ...