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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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46
votes
13answers
9k views

Is there any significant difference between Nikon and Canon?

I'm considering purchasing a DSLR for the first time here in the next couple of months. The two "big boys" seem to be Canon and Nikon. I've looked at both companies, and I can't really see significant ...
36
votes
3answers
10k views

What apertures are required to enable autofocus, including cross-type or high-precision focusing, on Canon DSLR cameras?

This is a follow-up to Why does Canon and Nikon limit or disable autofocus beyond certain f-numbers? I'm doing this to separate the AF aperture requirements from the linked question above. My goal ...
32
votes
10answers
2k views

What are some tips for shooting in low light?

I own a Canon 450D with just the standard lens kit that comes with it (poor so won't be buy a new lens for a while) and one thing I tend to struggle with is shotting in lower light conditions, indoors ...
28
votes
3answers
144k views

What does STM mean on a Canon lens?

The Canon EF 40mm f/2.8 has a designation of STM on the lens. What does this mean? What are the advantages of having it and does it replace an older technology? We have a terminology thread that ...
27
votes
9answers
51k views

What is the difference between EF and EF-S lenses?

This is specific to Canon, but what is the difference between EF and EF-S lenses?
26
votes
8answers
7k views

What are the major differences between these camera series by Canon?

Here is a shot of the different series of camras that Canon has to offer: There's several models of Rebel, then there's the 50D, the 5D, and the 1Ds. Broadly, which one is for whom broadly?
24
votes
1answer
9k views

What are the differences between E-TTL, i-TTL, and P-TTL?

Canon, Nikon and Pentax each have their own TTL flash metering systems, respectively E-TTL, i-TTL, and P-TTL. They all use a weak preflash that is metered and used to calculate flash power level ...
23
votes
10answers
16k views

How to take great night shots?

I have Canon Rebel XS (EF-S 18-55mm f/3.5-5.6 IS Autofocus Lens). I have been trying to take decent night photographs for a while. But it seems to take a lot of effort. Can we take good night shots ...
23
votes
5answers
2k views

What are the most notable differences between Canon and Nikon lenses?

I'm currently considering to buy one of the next generation enthusiast DSLRs. Either a Canon EOS 60D or the slightly more expensive Nikon D7000. I'm quite new to the SLR discussion but I know there ...
22
votes
10answers
5k views

Canon 50mm lens: f/1.2 L or f/1.4? Alternative brands?

I am in the market for a 50mm lens for my Canon DSLR. I've read plenty of reviews, and all of them have great things to say about both lenses. From a scientific perspective, the f/1.2 performs better ...
21
votes
14answers
18k views

How do I get a stuck screw filter off of my lens?

There is a UV-filter screwed on my Canon 16-35mm. For some reason, I'm not able to get it off the lens. Does anyone has a simple but safe trick?
19
votes
6answers
3k views

Which lens serves best as the only lens on a cropped body for a beginner: the 40mm f2.8 or 50mm f1.8?

I'm planning on giving my college age daughter my Canon 40D sometime soon. (Not Christmas, but the Christmas sales are getting me thinking). She has a point and shoot and turn out pretty amazing work ...
19
votes
7answers
8k views

Why there is no Canon 50mm *IS* lens?

Canon's 50mm prime lenses are all non-IS (Image Stabilization) for some reason. Considering the popularity of these range primes, shouldn't Canon be interested in shipping a new, optically improved IS ...
18
votes
5answers
2k views

Is it worth it to have the 50mm f/1.8 Canon lens?

Is it really useful to have a fast prime lens for portrait photography, considering a low budget? If it is, what about the Canon EF 50mm F1.8 II? I have an entry level 18-55mm lens and a Canon 20D. ...
18
votes
5answers
806 views

Why do two lenses with the same F-number give different amount of light?

Why do the following two lenses provide different amount of light? In both images we have fixed focusing distance, distance to the object, ISO, shutter speed and F-number.
18
votes
4answers
2k views

What does the dot on some zoom lens scales mean?

I noticed on my Canon 18-55mm kit lens there is a dot on the zoom scale between 24 & 35mm (though skewed very much towards 24mm). This position appears to be the spot where the lens is physically ...
17
votes
10answers
42k views

Is there good free software for editing Canon RAW files?

I've lost the install disks that came with my 500D and I was wondering if there was any better software for editing Canon RAW files. I Had a quick skim of the Canon website and couldn't find anything. ...
17
votes
12answers
7k views

What is the best Canon lens (around $500) for taking pictures of my newborn?

I have a Canon T2i, a 50mm f/1.8 and the kit lens (18-55mm). I'm considering buying a new lens for more flexibility with taking pictures of my upcoming newborn. I LOVE the 50mm/1.8 lens, but on the ...
17
votes
11answers
6k views

What is the best lens for taking photos of birds?

I was using a Panasonic Lumix, now I finally got a Canon EOS 60D, but I was used to that 18x zoom that my old camera has, because you can't get too close from the birds to take pictures, since they ...
17
votes
4answers
13k views

What is the difference between Canon's black inks?

My Canon MP560 printer requires one PGI-220BK black cartridge and one CLI-221BK black cartridge (which is a part of a CMYK bunch). What is the difference between the two?
17
votes
3answers
15k views

What is the difference between Canon “L” lenses and non-L lenses?

The Canon L lenses are much more expensive and presumably much better quality than non-L lenses. What makes an "L" lens? How much better are they over a similar length/speed "ordinary" canon lenses?
17
votes
2answers
2k views

What will happen if I install the Magic Lantern firmware on my Canon 550D?

I have a Canon 550D, which I just start learning how to use. I have read that the Magic Lantern firmware makes the camera better in movie recording. Does Magic Lantern firmware dramatically change ...
17
votes
7answers
42k views

How can I see the number of shutter actuations for my Canon EOS 350D?

I have a Canon Digital Rebel XT (otherwise known as the EOS 350D). I'd like to find the number of shutter actuations. I have tried ExifTool, and the ShutterCount is not part Exif information for a ...
16
votes
4answers
23k views

What are the key differences between the Canon 60D and Canon 600D?

What are the key differences between the Canon 60D and Canon 600D? I know the size is different and they are constructed of different materials, but in technical specifications and image quality, ...
16
votes
2answers
3k views

Why do some professional cameras have dual memory card slots?

I have noticed that some cameras such as the Nikon D300s, Canon EOS 1D Mark IV, or Pentax 645D have dual memory card slots. What is the purpose of having multiple memory card slots and why would you ...
16
votes
1answer
6k views

What is the function of the MISC folder on my memory card?

In all the Canon cameras that I have/had, after every session a MISC folder was created, besides the normal DCIM folder. This folder was always empty and the camera didn't bother if I deleted it. ...
16
votes
2answers
2k views

How do I clean the inside of my viewfinder?

My viewfinder (not LCD) has spots of dust on it. What is the best way to clean the inside? I have cleaned the outside with a QTip.
15
votes
10answers
15k views

What's wrong with the Canon EF-S 15-85mm?

Maybe this question should be on meta. I've just come across the Canon EF-S 15-85mm. It's been available since 2009. I'm just wondering why it has never been mentioned on photo_se_com or any of the ...
15
votes
7answers
2k views

What are the real-world differences between Canon, Sigma and other third-party 70-200 f/2.8 lenses?

I'm getting started with wedding photography, and was looking for a fast telephoto zoom to compliment my Tamron 17-50 f/2.8 (on a Canon 500D/T1i). After extensive online research, the 70-200 f/2.8 ...
15
votes
4answers
2k views

Difference between a Canon and a Nikon crop sensor

Most, if not, all Nikon have a crop factor of 1.5, while a Canon has 1.6, does this mean that Nikons are closer to a full-frame, in terms of having a bigger sensor and all the benefits that comes with ...
15
votes
4answers
1k views

What should someone know when switching from Canon to Nikon?

I'm starting the switch from Canon to Nikon. Having used Canon gear for 10 years I'm pretty familiar with their system. As I move to Nikon, what things should I know that are different and would be ...
15
votes
5answers
7k views

What is “Highlight Tone Priority”?

This seems to be available in most of recent Canon cameras. I am curious how it works, and how it is different from the Auto Lighting Optimizer. Is it a useful function?
15
votes
3answers
700 views

Is it possible to hack other brands of cameras in a manner similar to Canon cameras?

Some Canon cameras can be hacked with a tool called the Canon Hack Development Kit (http://chdk.wikia.com), which does interesting things like add manual controls and allow scripting. Do similar tools ...
14
votes
7answers
812 views

Upgrade strategy for Canon EOS DSLRs

In February 2010 I bought my first DSLR: EOS Rebel XSi EF-S 18-55IS Kit I also bought a zoom telephoto lens: Canon EF 70-300mm f/4-5.6 IS USM The XSi is a simple camera which I thought would be good ...
14
votes
5answers
3k views

What's the difference between the Canon and Nikon lenses mounts?

I was wondering what, if any, are the technical differences between the two mounting systems. Does one auto focus faster? Can one hold more weight? Things along those lines that make them different. ...
14
votes
5answers
2k views

Should I go 5D Mark II or 7D?

Today I own a Digital Rebel XSi and the only EF-S lens I have are those that came in the kit. I've been reading a lot trying to decide for my next body, but oh boy, what a tough decision! I'm ...
14
votes
11answers
3k views

Getting ready to buy an entry-level Canon dSLR — should I skip the kit lens? [duplicate]

Possible Duplicate: Should I buy a camera with kit lens, or body plus lens separately? My wife and I are amateur photographers and we are upgrading from a Canon 20D. We will be using the ...
14
votes
2answers
442 views

What are the advantages of the Canon 580EX II over the 430EX II?

I want to purchase a Speedlite for my Canon DSLR, but am curious to whether I need to spend the extra dollars to get the top of the line 580EX II over the more affordable 430EX II. What are the ...
13
votes
6answers
2k views

What should I do to switch my gear from Sony to Canon?

So I currently have a Sony A700 which i bought a year ago, and wanting to get some quality glass. I was looking at the Carl Zeiss 24-70/f2.8 lens, but then got talking to a friend who's a canon user. ...
13
votes
5answers
2k views

What gear do I need to shoot underwater with my Canon T2i?

I have a Canon T2i 18-55 setup. I was wondering what all equipment might I be needing to shoot underwater photos with this camera. Is it possible to shoot underwater photos with these normal cameras ...
13
votes
4answers
7k views

What is a 200mm lens good for?

I just found that there is a 200mm lens at my school. It is a Canon with Image Stabiliser (with red detail). It is old, at least 10 years. It has been great playing around with it, but I really don't ...
13
votes
4answers
531 views

Does Canon make an L series lens with a plastic lens mount?

An online retailer is telling me that Canon 24-105 f4L lens comes in two versions, the USA model with a steel lens mount and an import with a plastic lens mount. Is this true?
13
votes
2answers
1k views

How can I reverse-mount a Canon F/1.4 50 mm for macro photography?

I'd like to experiment with mounting my Canon F/1.4 50 mm lens backwards to experiment with macro photography (on a Rebel Xti). What kind of gear do I need, and how do I go about it?
13
votes
7answers
840 views

Should I invest in a high-end body or better lenses?

I've got a good-old Pentax K100D body with a kit 18-55 and a couple of 50mm manual focus primes. I'm trying to get back into photography, but slow (and some times lack of) focusing does not give me ...
13
votes
1answer
540 views

Is it really better to shoot at full-stop ISOs?

The second half of this answer says Notice that I only shot full-stop ISO which is important with Canon DSLRs because the gain to obtain the 1/3 stops in between is applied in software by the ...
13
votes
2answers
5k views

Does the selection of sRGB or Adobe RGB in camera when shooting RAW ever matter?

In talking to a colleague of mine yesterday, we got onto the subject of color spaces in digital photography. He's a Nikon buff, I use Canon (specifically, an EOS 50D); I don't know if that is relevant ...
13
votes
3answers
5k views

What are the different Canon tripod mount ring types for?

What are the types of Canon's tripod mount rings? I've heard about A, B, C and D types, but have no idea what it means or what the difference between them is.
13
votes
5answers
2k views

What can cause an “Err 99” on my Canon 20D with EF-S 17-85mm lens, and what can I do to resolve it?

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 ...
13
votes
3answers
593 views

What was my flash power?

When I am using a Canon flash in the E-TTL mode, how can I tell which flash power the E-TTL magic chose? For example, if I got a correct exposure in the E-TTL mode, can I easily choose the same flash ...
12
votes
8answers
4k views

Which camera is more suitable for portrait taking between Canon 7D and 60d ?

I am upgrading from a Canon Rebel that I've owned and worked with for a while now, and I wonder: what are the advantages/disadvantages of a 60D vs a 7D? I am mainly interested in portraits (and some ...