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Messages - chimpmitten

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Sports / Re: Post Your Panning Shots!
« on: July 09, 2012, 04:15:29 PM »
I took this a few years ago when I go my 70-200mm II and I think it was the last time that I made it to the track.  Hopefully I'll be able to get there this year and get some more like this.

Camera:   Canon EOS 50D
Exposure Time: 1/40
Aperture:   f/11
ISO:   100
Focal Length:   88mm

IS was on and in mode 2.

Lenses / Re: 40mm f2.8 STM - Lens Hood?
« on: June 26, 2012, 02:00:23 PM »
I usually try to use a lens hood for bump protection whenever shooting outside of a studio setting, but that thing is so dinky that I don't think I would bother.  The 50 1.8 hood might be an option for more extreme situations (mosh pits and the like).  Can the lens cap be used while the hood is attached? I assume the hood can not be reversed like the bayonet types can be?

Lenses / Re: Would you get a tattoo of a Canon lens?
« on: June 22, 2012, 12:09:12 PM »
Dedication is a lifesize 1200mm f5.6

And where would you locate something that long  ;)

Great, now I have an inappropriate thought as to where to get a zoom lens tattooed.

EOS Bodies / Re: Is the 5DIII the New 50D?
« on: June 15, 2012, 10:53:29 AM »
As a 50D owner, I would say that yes, for me the 5DIII is (hopefully soon) the new 50D.

The 50D was my introduction to DSLRs and I purchased it along with a 28mm 1.8 and a 85mm 1.8 with the goal of shooting indoor sports (mainly roller derby) and concerts (cramped bars and classical).  It was at the right price point for me and I felt that the frame rate would work well for sports and the silent shooting mode when using live view would work well for the classical concerts.  The fast lenses worked well in the dim lighting, but after about a year I purchased some flashes and soon after the stars aligned and I was able to acquire a 70-200mm 2.8 ii.

When I purchased it the Nikon D90 was another option for me, but after handling both cameras the 50D just felt better.  I could see myself shooting all day with it in my hands, while the Nikon felt cramped.  I had no interest in video at that time so the 50d was a perfect fit.  The new features it had worked great for me and I didn't feel that I was missing out on much at the amount that I was spending.

I've been bumping up against the limitations of the 50D and the 5Diii looks to be a good upgrade for me.  The silent shooting mode through the view finder looks to be a big improvement over using the live view of the 50D.  It has a similar frame rate, but with a much improved auto focus and I can use all of my lenses on full frame.  Plus after just having the weather sealing on the 50D fail on me in the middle of a schutzhund trial the 5D will also be a big improvement in this regard (or I could just learn not to stand in the rain).

The only downside is the cost and that I would want more lenses and the battery grip to go with it.  At the moment probably the new 40mm 2.8 and the 2x iii extender; so that I could have field of views similar to the 28mm and 70-200mm on the 50d.

My 50D did recover from its jaunt in the rain and attached is a 100% crop from one of the photos that almost led to its demise.

Lenses / Re: Canon EF 40mm f/2.8 Pancake
« on: June 08, 2012, 01:48:53 PM »
I had no interest in this lens, until I started reading all of the complaints about it.  ;D

I am planning on getting a 5d iii once I have the money in place (kitchen remodels do not coincide well with upgrading camera equipment) and was looking for a standard ff focal length lens to go with it. 

The 50 1.2 is out of my price range, and I don't like the plastic mount of the 50 1.8.  The 50 1.4 looked to be the way to go, but this at a cheaper price and similar build might be better for me.  The tiny size means I'd be able to put a body with lens into my work bag or even the handle bar bag on my bicycle.  The 40 mm would probably work well cropped on my 50d, and I don't think I'll miss the faster lens since I already have the 28mm and 85mm 1.8 lenses. 

Also it will look ridiculous with the 40mm pancake on one body and my 70-200m ii on the another. 

Although I'd probably stick with the 28mm in that setup since the cropped 40mm would be pretty close to 70mm on the 5d.  Maybe if I end up with an extender for the 70-200 as well...

How about this? Clearly NO LENS CAP!
D81 0512

Yes, thank you very much.  That is the sort of thing I had unsuccessfully looked for. 

If that is the extent of the problem then I can easily live with this.  When taking long exposures like that I would generally use a 2 second delay to make sure that I am not shaking the camera.  There would be no need to leave the back light on during the exposure. 

Actually, I would probably be shooting manually, so changes to the auto exposure wouldn't matter anyway, but it is good to know the limitations and bugs of the camera.

Thanks again.



In a real world situation, it's kinda hard to get an accurate meter reading with the lens cap on... this whole thing is so ridiculous...

Says you, but you haven't seen my 30 x 30 GiclĂ©e Watercolor print of the inside of a Canon 1200/5.6L USM lens cap.  It is beautiful. 

Shot wide open for a razor thin DOF.

Make sure you have the shutter button down half way so that it is constantly calculating the exposure when you do the back light.  You can also do a search for "5d mark iii light leak videos" that will show how it is done.

What steps must I take to find out if my camera has the light leak issue?

Whether there is a light leak "issue" is up for debate.  You can replicate it by putting on your lens cap and putting the camera in an auto mode, then hold the shutter button down half way.  The camera should try to properly expose the absence of light. 

While holding the shutter button half way, if you press the top LCD back light button the exposure settings should change to compensate for a minuscule amount of light reaching the sensor used for exposure metering. 

I have yet to see or hear of an example where this occurs without the lens cap on, so the effect appears to have little or no impact on real world use.  I'd be more than happy (well not happy since I'd like to get a 5d iii), to be proven wrong about that.

« on: April 20, 2012, 03:10:08 PM »

Here is one of the videos (BTW, it is referenced in the beginning of this thread!)
Canon 5D Mark III - Light Leak via Viewfinder

I did similar tests with similar results. Hope I didn't, but can't undo it;-)

As was said, in the beginning of this thread, that is not even remotely the same issue as we are discussing.

The fact that this guy is shocked that light will go through the view finder is in itself mind boggling for someone purporting to be a camera expert. 

Since you did a similar test, I can only assume that you have a 5d iii (since that is what we are discussing).  Could you try the test that I suggested in my previous post?

« on: April 20, 2012, 02:08:14 PM »
Ok, at least check the videos where night scenes exposure changes (without lens cap on). I can't believe how people defend a brand blindly. CANON THEMSELVES ACKNOWLEDGE THE PROBLEM!! IS THIS NOT ENOUGH PROOF?? I understand that this could happen to any company\product, it is a fact which we all will forget three months from now!


Can you point to some of the videos of the lens cap off that demonstrate the issue?  I did a quick look and the videos I saw of the lens cap off did not have the issue.  They only ones I saw demonstrating the issue were when the lens cap was on or no lens at all with the body cap.

If this is all that it is, when in the complete absence of light a few stray light waves manage to get in an effect the metering of a completely black scene so that it is a slightly different shade of completely black, then I am not worried in the least.   I doubt that Canon would even make any fix to the camera at all.

If someone could demonstrate how this effects things while actually taking a picture of something, then that would be great, but I haven't seen that yet, and I've been trying to look for it.

Here, I'll even give an example that should demonstrate the issue.  Maybe MrSandman can do this and post results.  Stand outside in bright sunlight with a telephoto lens and take a picture through a window into a darkened room.  Then go into the darkened room and take another picture.  When outside the direct sunlight should cause the light leak issue and screw up the metering.  Post both pictures so we can see the difference.


Are there any comparison images that show this issue when actually taking pictures?

I found a comparison shot of the inside of a lens cap and both pictures were a very similar looking black rectangle.

From the sounds of it in this thread and some other places, this really seems like a non issue.  If it was a problem I would imagine that it would be able to be reproduced in real world situations, like when shooting without a lens cap.

The complaints make it sound like if you remove a lens you would see a light shining down from the LCD.  I have a feeling that this is not the case.

I would think that if this was an actual issue someone could take a picture of a blank wall or a test pattern, turn on the lcd light and take the same pictures with a noticeable difference between the two images.  Where are these images?

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