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Topics - Forceflow

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EOS Bodies - For Stills / 7D and rear curtain flash :(
« on: May 04, 2013, 04:14:58 PM »
Why will my 7D not do a rear curtain flash with non-Canon devices? I just purchased the pixel soldier remote trigger set only to find out that Canon wont let me do a second curtain flash. There is no reason not to allow rear curtain. All the camera has to do is to send the flash signal and that is it :(

Any ideas what is behind this or even better a fix for this?


Not sure if this is the right place, but couldn't find any subforum that really seemed to fit my question.

I just got a request from a friend who wants me to take a landscape photograph for her that will be hung up in her winery. It will be printed on semi transparent paper mounted behind a plexiglass wall and then back lit. She mentioned that people should be able to get fairly close to it and should still be able to make out details then. I currently have a 7d and figured for this I would need at least 150dpi which would result in 12 photographs. (24 if you take into consideration that images need to overlap and that you should have some room on all sides for final composition) If I go to 300dpi (which I think would be overkill) we're talking about 44 (or rather 88) photographs. (Unless my calculations are wrong of course)

Does anybody have experience with prints this large (and printed on transparent paper) Is 150dpi reasonable, way too little or too much after all because you'll never get this much detail on non-photo paper anyways?

Software & Accessories / Battery Grip for 7D - any suggestions?
« on: May 18, 2012, 05:06:08 AM »
I would really like to get a Battery Grip for my 7D. There is of course the original which I would assume has the best weather sealing. But besides that, it's only expensive with basically no other functions. There do seem to be a vast number of third party options available and some of them at least claim some additional features. (Often at a reduced price and some even come with 2 additional batteries)

So my question is, does anybody has any experiences with third party battery grips and can recommend one for me? If the features are good and the quality is sound I don't mind paying more than for the original, but in that case it must be high quality! What I would really love to have is one that also has the small joystick, but from my little research on amazon this does not appear to be a feature any of the grips have.

Lenses / Good yet affordable telephoto lens?
« on: September 08, 2011, 05:26:33 AM »
Hi folks,

hope somebody here can give me some pointers. I was recently forced to renew my equipment (mental note to self: do not leave your camera backpack in your car in Vancouver. Even if it's locked and nobody can see it) I replaced most of the things I had and changed some of the things around. Currently I have the 7D with Canon's 24-70 2.8, and the 50mm 1.8 plus Sigma's 85mm 1.4 and 150mm macro 2.8 OS.
I used to have Sigma's 70-200 2.8 + the 2x converter, but decided to not get this one for now. (Well, my bank account sort of decided against it) But sooner or later I will want to replace the loss of long zoom range as well. Question is though, with what? The 70-200 from Sigma had an okay quality, but that was pretty much it. It was okay. From what I read on the internet Canon's version might be better built and reliable, but image quality wise it's not going to be much better. (And their IS version is on the outer edge of my budget) In terms of range the 150-500 from Sigma sounds nice, but I haven't hard much good and a lot of bad about that one. The only other affordable lenses I could think of would be the 300/4 or 400/5.6 from Canon. (Plus maybe the 1.4 converter)

So, any recommendations, experiences or great ideas on how I can get long range at an affordable price? (With affordable meaning less than Canon's 70-200 2.8 IS)

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