A7S Indoor Gamma Recommendations?

L

ljgmdad

Member
Hi folks,

Noob here, seeking some recommendations...

I'll be doing a lot of indoor videoing for basketball games, wrestling matches, etc. My first thought was to trying S-Log2, but I'm finding that at ISO 3200 and 1/60 (30fps) I can't open the aperture much more than about F/5.0 and that puts my exposure right at +/-0. So it seems S-Log2 is not a good shooting mode for this situation because I want to be shooting closer to F/8? Even F/11. Therefore I'd prefer to shoot at ISO 12800 (love having this luxury). And in this case, what do you folks recommend for a gamma setting? I've been led to believe S-Log2 requires ISO 3200.

Thanks in advance!!!
 
Cine 4 is primarily designed as an indoor gamma under largely typical lighting conditions. If you are studio lighting consider Cine 1 or 2. Cine 4 can work with lighting but depending on the contrast ratios in the scene.
 
Thanks guys. These venues are high school gyms, so lighting is poor. In fact, this should be pretty low contrast overall so S-LOG2 may not be warranted anyhow.
 
How can expose +2?
I only can expose manually, via dial rig, when ISO is set to Auto. It's possible to expose +2, with Iso set to an value fix?
 
toxotis70 said:
turn the wheel on top of the A7s to +2 ev.
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Doesn't that reduce the shutter speed by two stops? I'd think it'd affect judder and/or motion smoothness. It would seem that opening aperture or increasing ISO is preferable.

Well I shot my first basketball game last night. I ended up using no profile, manual WB set to 3900K with 18% gray card, and manual exposure. I have to say the results are not half bad. Color is good. But I'm a little disappointed with the softness while panning. I shot 1080p,60 at 1/125, f/8, ISO 12500. Noise is incredibly minimal, but could be the cause of some softness. Hopefully during the week I'll find time to play with a couple profiles, PP6 and PP7/Flaat and gain enough confidence that I can handle them in post before next week's game!

Samuel H, jcs, thanks for the pointers. I'll check 'em out!!!
 
If you're shooting M, that wheel does absolutely nothing. Just set your exposure as the camera tells you (or your light meter), then add two stops of light (by taking ND away, increasing ISO, or opening aperture). After 30 minutes doing this, you'll know how to go for the final setting right away.

(BTW I would have said just 1 stop, but 2 is fine too if you don't have strong highlights in the image)
 
ljgmdad said:
But I'm a little disappointed with the softness while panning. I shot 1080p,60 at 1/125, f/8, ISO 12500. Noise is incredibly minimal, but could be the cause of some softness.
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I think the general consensus regarding shooting in 60p, not counting rolling shutter, is that shooting 60p in APS-C mode is superior to shooting in Full Frame mode. Give that a shot and share your experiences.
 
I always switch to APS-C for 60p. You get one stop more noise, but a better image ovarall (60p has some aliasing in FF mode).
 
a mid grey card in the area you care the most about
and then you adjust as needed, it depends a lot on the scene
 
Samuel H said:
I always switch to APS-C for 60p. You get one stop more noise, but a better image ovarall (60p has some aliasing in FF mode).
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I see. I think that can be done with a FF lens in-camera... I'll look at the menus again.

Rolling shutter was not very bad at all. One stop more noise could be an issue. High school gyms are dimly lit. I had to shoot at ISO 12500 this past weekend...
 
blafarm said:
I think the general consensus regarding shooting in 60p, not counting rolling shutter, is that shooting 60p in APS-C mode is superior to shooting in Full Frame mode. Give that a shot and share your experiences.
Click to expand...
Thanks for the info and suggestion... if I find a gym that doesn't require ISO 12500.... I'll definitely give it a try.
 
I use up-to-12800 in FF mode and up-to-6400 in APS-C mode, so yes, you're stretching yourself here...

And yes, you can force APS-C when using FF lenses, it's somewhere in the menus (it's on the second tab of the second tab IIRC)
 
Samuel H said:
I use up-to-12800 in FF mode and up-to-6400 in APS-C mode, so yes, you're stretching yourself here...

And yes, you can force APS-C when using FF lenses, it's somewhere in the menus (it's on the second tab of the second tab IIRC)
Click to expand...

I'm finding that my graded 12800 footage needs Neat Video noise reduction. This weekend I dialed up ISO 10000, so will see how 1/3 stop less noise works out. The 12800 footage is really not too bad. It's a very fine-grained noise. But it's distracting nonetheless.
 
I always try to overexpose by one stop. So, I set ISO 12800 when the light meter tells me to use ISO 6400. If you're not doing that, your limit will probably be ISO 6400.
 
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