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

learn more… | top users | synonyms (2)

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2answers
264 views

Firing master flash with Yongnuo RF-603 II

I got a couple Yongnuo RF-603 II triggers. And I got a Canon 550EX and 430EX. I want to use the triggers to fire the 550EX remotely. The 550EX is in master mode. Which should trigger my 430EX in ...
1
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1answer
38k views

How to change Shutter Speed and Aperture on Canon T2i?

I have a Canon T2i and I am having a hard time figuring out how to change the shutter speed and aperture. I have tried reading the manual but it seems to be a little unclear. Can someone please point ...
1
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2answers
3k views

Is Canon 16-35/4 IS better than 16-35/2.8 II at f/4? [closed]

I have had a 16-35/2.8 II for almost a year, but it broke and I might be in the market to replace it. Last week I saw that Canon had released a new lens in this range, but with f/4 and IS. Is Canon ...
2
votes
1answer
490 views

What are the differences between Canon and Tamron 70-200mm f/2.8 zoom lenses?

I will purchase either the Tamron SP 70-200MM F/2.8 DI VC USD or the Canon EF 70-200mm f/2.8L IS II USM. Considering there is around a $700 price difference between these two I am wondering if there ...
5
votes
5answers
3k views

Why are Micro Four Thirds lenses so expensive compared to Canon?

I'm looking at picking up a new prime portrait lens to augment the kit lenses that came with my Olympus OM-D M-10. My brother has a Canon with a 50mm f/1.8 lens that takes beautiful photos and costs ...
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2answers
3k views

How to transfer all my photos from my Canon camera to my iPad mini in wi-fi?

I want to transfer all my photos from my Canon camera to my iPad mini in wi-fi. How can I do that ? I have installed the app CameraWindow on my iPad. I found a way to choose and transfer one photo. ...
1
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1answer
91 views

How to Mount Pentax K-Mount on Canon

I have an old Pentax 50mm 1:2 lens (from a Pentax Asahi K-1000) and a Vivitar 28mm f2.8 that I am trying to adapt to fit on my Canon Rebel t2i. I purchased two of these adapters but I cannot figure ...
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1answer
71 views

How do I identify the lens mount for this old lens which says “for Canon”?

I'm trying to find the correct lens mount or adapter to use with my canon t3i.
7
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1answer
27k 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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0answers
48 views

Has anyone used Canon EF lenses on Sony mirrorless cameras? [duplicate]

I'm looking to buy a Sony mirrorless camera. The draw back is the expense of extra lenses as Sony really is proud of their products. Has anyone here tried using a Canon EF lens on a Sony mirrorless ...
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0answers
166 views

Canon 750d very slow focus speed

I've a new EOS 750d (T5i), with several Canon lenses. Before, I used to have a 450d. I've noticed that the camera is very slow to focus, the motor is audibly struggling, and focusing on an inanimate ...
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2answers
3k views

How good are the EF-mount to E-mount adapters?

I currently live in the Canon ecosystem, but really like the look of the Sony a7S. But before I switch I want to know just how well I'll be able use use my old EF-mount lenses on my new a7S. How well ...
3
votes
2answers
999 views

Can the Canon 5D Mark II be set to save exposure settings on auto power off?

I usually use my 5D mark II in manual mode, with auto power off enabled, but every time it auto powers off, my exposure settings (shutter speed, aperture, iso) are lost. It seems like there should be ...
4
votes
1answer
2k views

So why does Canon 5D Mark II have a better video quality than Canon 60D?

Assuming that Canon 5D Mark II and Canon 60D both have the same processor, DIGIC 4 (single), why does the former shoots a better quality video? Better quality I mean the technical aspect, the ...
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2answers
243 views

Could I use an old Canon FD lens on a new Canon EOS M3?

I am considering buying a new Canon EOS M3 to use my very old Canon FD lenses. Would they fit?
-1
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2answers
349 views

Buy Canon 6D or wait? [closed]

I want to buy a FF Canon Camera, I´m not a profesional, but I would like to have a good camera. Do you think it is good idea to buy Canon 6D or wait for Canon 6D mark ii??
6
votes
1answer
764 views

What is the purpose of “A-DEP” mode on Canon cameras?

What is the purpose of the "A-DEP" shooting mode on Canon cameras, for example the T3i/600D? In what kind of situations is it helpful - for example, under low light conditions, higher ISO or when ...
2
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2answers
154 views

How can I fix my Canon rebel XT?

My camera Canon Rebel XT has suddenly gone of order in the sense that: When I turn my camera ON and take a pic, I cannot take a second picture. I have to turn it OFF and back ON again to be able to ...
4
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2answers
13k views
1
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1answer
961 views

Can I take multiple exposure shots with my Canon 600D?

Can I take multiple exposure shots with my 600D? If not, how I can achieve the same effect?
2
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1answer
2k views

Can the Panasonic GH4 remotely fire a Canon Speedlight 320EX?

I've been using a Canon 7D with my 320EX remotely for years, but when my 7D unexpectedly went swimming with me (never to recover), I decided to replace it with a GH4, which I'd been lusting after for ...
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votes
1answer
103 views

Canon Rebel EOS XTi: USB not connecting when using external power

I have a Canon EOS Digital Rebel XTi that I'm using for timelapse photography (see an early effort here). I'm controlling the camera using gphoto2 on a Raspberry Pi, taking individual frames every ...
5
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1answer
3k views

Why does the IR-Assist beam of Canon Speedlites not get used in AI Servo AF mode?

The IR AF-assist beam on the Canon Speedlites (I have a 430 EX II) doesn't seem to come on when the DSLR (I have the EOS 7D) is in 'AI Servo' AF-mode. It works fine if I'm in one-shot mode (comes on ...
3
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0answers
56 views

Are there still two classes of Canon IXUS/Powershot/IXY/ELPH around?

When I last time bought a Canon Digital IXUS compact camera, there were basically two series available: "Ultra-compact" Digital IXUS 65 ... 70 ... 75 ... 85 IS ... (Europe) Powershot ...
3
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1answer
1k views

What causes white blank images when shooting with a Canon PowerShot A4050?

I have a 3 week old Canon PowerShot A4050 camera. Almost all of my pictures (8 out of 10) are blank, white images. Video shooting is OK, but only occasionally good stills - does anyone know what can ...
9
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3answers
1k views

Why do my photos “glow”?

I have a Canon 60D and recently bought a Canon zoom lens EF 24-70mm 2,8L USM. Bright colours seem to "glow" or are blurry when I take photos. It does not seem to be blurred because of movement or ...
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4answers
2k views

Are there cheap or DIY focus assist solutions for the Canon 5D?

I want a better autofocus system for low light. Low light auto focus is my biggest bane. I use a 5D so the options are AF on a flash like the 430 or 580. I happen to use the Pocket Wizard TT1 so I ...
4
votes
5answers
13k views

If I have an 85mm lens for portraits, is a 50mm useful as well?

I recently got my Canon EF 85mm f1.8, after lot of thought over if I should buy Canon EF 85mm f1.8 or Canon EF 50mm f1.4, I decided on 85mm so that I can shoot portraits of people even from a ...
4
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1answer
174 views

What is Arbitrary Release Time Lag?

The Canon EOS 5DS and EOS 5DSr both offer a new feature that I have never heard of. Canon refers to it as Arbitrary Release Time Lag. What does the feature do and why might I benefit from it?
40
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4answers
18k 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 ...
0
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1answer
204 views

Why isn't my Canon 60D saving images to SD with pics taken using swivel screen/viewer?

My Canon 60D does not save photos to the SD card when I take photos while using the swivel screen/viewer. It happens with different SD cards, so I don't think it is caused by a defective SD card.
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0answers
59 views

How to solve change in front and back focus at different diaphragms?

I've got an Canon 85mm f1.8 for sport photography and portraits. Testing it doesn't make me smile. I get backfocus at f1.8 and f2.8, but front focus at 2.0 and 2.2. This varies at different distances. ...
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0answers
33 views

Toyo Optics wide angle lens okay for X S I?

Picked up an old lens at goodwill (has Montgomery Ward price tag...lol) Toyo Optics 28mm F 2.8 and tried to mount on Canon XSI but it's too small for the mount. Is it possible to get an adapter so ...
0
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1answer
194 views

What is the name of the Canon SX60 HS Wireless Protocol?

I own a Canon SX60 HS and would like to know more about the protocol which is used to connect it to the possible software counterparts: CameraWindow for i.e. Android CameraWindow for i.e. Windows 7 ...
2
votes
4answers
352 views

Will a 50mm EF lens give the same result as a 50mm EF-S lens? [duplicate]

edit: ^^ the answer to that question talks about the lens being the same and but not how or why this is the case, and does not answer the question about resultant image, First of all, to let you ...
0
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2answers
1k views

What is the EF 28 - 105 mm 1: 3.5-4.5 lens best for?

I've been shooting for about a year now and am slowly acquiring lenses. I just bought two used on craigslist from someone who was getting rid of equipment. Canon EF 28 - 105 mm 1: 3.5-4.5 Canon EF ...
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1answer
163 views

Canon 1000D shutter stuck. How to fix?

As you can see on the picture the shutter is stuck. What now? It is a pricey service job or this happens a lot and there is a know fix out there that I do not find on Google? I already tried that ...
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3answers
166 views

EOS-1N (Film SLR) - Set aperture with modern EF lenses?

Can this camera set the aperture with modern EF lenses, or do I have to get lenses that allow me to set the aperture with a ring on the lens? And if anyone knows how this camera compares to the EOS ...
3
votes
2answers
4k views

What are the (dis)advantages of the Canon 600EX-RT compared to the 430EX and 580EX?

I'm considering buying a flash for my Canon DSLR. I noticed the 600EX recently came out. What are the pros and cons of the new 600 flash versus the other two mentioned in the title?
0
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1answer
84 views

how to control my 5D mark II using my computer [duplicate]

I am trying to take a picture using my 5D mark II and controlling it from my laptop. I have done it a long time ago but cannot remember how.
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votes
2answers
2k views

Where is my DOF button in 550D?

While going through many of the "reverse lens for macro shooting" tutorials I found that I should hold my DOF preview button and then detach the lens and reverse. This would ensure the aperture lock. ...
0
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2answers
476 views

Canon 50mm f1.4 no longer focuses reliably

On my Canon 6D, other lenses work as expected. But my 50mm f1.4 which has been very reliable for many years is not focusing correctly. It can sometimes focus when the subject is close (1-5' away). ...
3
votes
4answers
17k views

How can I open CR2 files with Photoshop CS4's ACR?

When I try to open from within Photoshop, through Open as, then Camera Raw, it lists this extension but doesn't open the file. I need an explanation in a "for dummies" version. This is my second day ...
9
votes
7answers
13k views

How can I get proper flash exposure in AV mode without using ETTL?

I have a Canon 5D Mark II and normally shoot with natural light (I try to stay away from flash). However, I am taking on more situations where I need to use my hotshoe flash (Canon Speedlite 580 EX ...
1
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0answers
61 views

Manual and Autofocus not working on near field with Canon Rebel T3

I dropped my camera on a tile floor the other day and everything appeared fine. My wife tried to take some close up pictures of a gift today and found that the Auto Focus wouldn't work on close field ...
7
votes
1answer
257 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 ...
2
votes
2answers
148 views

Does the Canon AF/MF switch actually do anything on L lenses?

I picked up a second hand 50mm f/1.2L lens recently with not a scratch on it. I've noticed that when the lens is set to MF, the autofocus on the camera (6d) still works. As a workaround I have ...
1
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1answer
87 views

photo color differs when viewing on chrome vs Picasa 3

I had downloaded a photo taken with a Canon camera from the web. The photo color quality looks different when viewing in Chrome and in Picasa. In Chrome it seems to be the original tack sharp image ...
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4answers
500 views

What low-cost non-fisheye wide angle lenses are available for Canon and how do they compare?

I'm currently looking for a wide angle lens for my Canon T3i. I would prefer a prime lens. I want to use a wide angle lens primarily for video (so the lens needs a quiet AF motor) but for still ...
3
votes
2answers
229 views

I scratched the glass on my Canon 550D's optical viewfinder — what can I do about it?

There were some speck of dust that appeared on the optical viewfinder when i look through it.. i tried using a blower but it didnt work and I may have introduced a scratch to it. Is there a way that I ...