[Tom Nash]

Hey Steve thanks for the help. I really appreciate the posts and getting back so quick. Thanks agin.
Tom

[Tom Nash]

Thanks for all of your help. This was a very helpful thread. Learning a lot and having fun with this project.

Tom

[Tom Nash]

Great stuff. I get the idea of fixed aperture across the focal length now. With an older camera and lousy lens it used to adjust the aperture as I zoomed which must have been variable. Got it.

Odd that on video mode I can’t adjust aperture but can in image mode using the same dial. Will try that again but manual I think is the way to go as suggested by you guys to help reduce the auto exposure issue I was having with flares while in auto and in Av.

I’ll try the approach suggested starting with FPS work from there with ISO being last setting. I’m only 15 ‘ from the audience or so which has me at 35mm which is nice and wide. The audience should be lit well so I think I’m good there.

Going to run a test tonight once it’s darker (for projector). I’ll post back.

One add’l question if you don’t mind. I saw a post of your on 30vs60 FPS. Any recommendations if my objective isn’t what I’m going to do with the footage after but the immediately live display of the recording. I’d like to record so we can watch the audience later but it really is all about an audience singing along to a song when they don’t know they are being recorded and don’t know that they are about to be looking at themselves on screen. There’s a slight lag but I’m thinking that is the lag from camera to HDMI switch to projector. Since there’s going to be a fair amount of movement (not dancing but definitely some having fun and watching ourselves) does 30/60 make a difference in blur? I suspect what’s recorded is more or less what is displayed on the screen of the camera which is what we project and maybe as ‘live’ as I can get it.

Tom

[Tom Nash]

Thanks. Just did. The dial on the back won’t budget the aperture. But will when not in video mode. Odd. Go to Manual and it does. Hmmm

[Tom Nash]

Great stuff. I get the idea of fixed aperture across the focal length now. With an older camera and lousy lens it used to adjust the aperture as I zoomed which must have been variable. Got it.

Odd that on video mode I can’t adjust aperture but can in image mode using the same dial. Will try that again but manual I think is the way to go as suggested by you guys to help reduce the auto exposure issue I was having with flares while in auto and in Av.

I’ll try the approach suggested starting with FPS work from there with ISO being last setting. I’m only 15 ‘ from the audience or so which has me at 35mm which is nice and wide. The audience should be lit well so I think I’m good there.

Going to run a test tonight once it’s darker (for projector). I’ll post back.

Tom

Tom

[Tom Nash]

Ahh, right Variable vs Fixed. So how does this work with a fixed aperture but with an aperture range of f4-f22 (according to BH). In Av, while taking pictures, I can scroll through F4-F22. Not sure I understand how that works then.

Tom

[Tom Nash]

It’s the 24-105. Normally I can set it like you would expect but won’t budge in movie mode in Av. I’ll keep playing with it and let you know if I figure it out.

[Tom Nash]

Hey Steve

Thanks for that. I understand Av vs Tv and needing to pump up ISO if I close it a bit to like f8 but for some reason when in video mode, I can’t get it to do anything but f/4 which is odd. Though maybe it’s something that I couldn’t do in Av when in video mode but then what’s the sense of Av if I can’t set the aperture. Weird. Will play around with that again.

I also didn’t take into account FPS. Wasn’t sure if that mattered in terms of the exposure. I’m set at 1920 with 30fps the highest in the camera. Since I was projecting back live I thought the highest FPS might be best but maybe not.

Thanks

[Tom Nash]

Thanks Steve. I was trying that last night but couldn’t get the exposure right since my test setup has the audience a bit under lit and was worried if I opened it up, people in the third row would be out of focus. Gave up when it got late last night but I’ll try again.

BTW, any chance you know why when shooting video, if you’re in Av, you can’t control aperture where it sets it at f/4 (widest for this lens). Seems like Av and Tv are the same in video.