Af100 image quality and uploading to the net

taras4444

Well-known member
Hi all, just had a few questions regarding the af100 i wanted to post so bare with me. I've had the camera for about a week now and slowly getting use to it. I've shot some alright stuff...and a lot of crap to but it's all learning I guess. Basically I had a few questions regarding image quality-

1) First of all, when looking at my footage on a hd monitor I notice sometimes my image is almost a bit "grainy" or not as sharp as I'd like or film quality. I don't know if this is just because I'm getting paranoid or sitting to close to the monitor, as when i move further away it looks better but still... do you guys (with your superior footage) ever notice this ? I am new to hd footage so might just have unrealistic expectations, still obviously sharp. The ISO settings are right down low and the detail settings are usually around the -2 to 0 mark.

2) Also I've experienced some problems with clipping and the dynamic range of the camera. I filmed on a sunny day in the woods and it was nearly impossible to have the sky in the shots as even with the strongest nd filter on and small aperture it would either be harshly clipped and white, or blue and natural but as a result the rest of the frame would be very dark. How do you guys shoot in extreme lighting conditions? Surely people can get a nice blue sky and buildings etc in shot and correct to, as eye wise we manage it every day even on sunny days. (I am using the voigtlander 25mm by the way).

3) Third and finally, just a quick question- when you guys upload footage to the internet and youtube what settings do you use etc? I watch hd clips on youtube that looks excellent, yet i uploaded mine from adobe cs4 via making a h.24---( whatever it is sorry) and it looked all compressed and frankly rubbish. Is there a standard way you guys create movie files and upload?

Apologies for the essay, just enjoying playing with this camera so much and had the above niggling issues so far that have been heavy on my mind. Appreciate any help I can get as always. Taras
 
You need to keep an eye on your exposure when you're in harsh sunlight especially with skies. It's hard to expose for both a sky and a subject if the conditions are poor for it, and that's true no matter what camera you're using in this price range. I've been learning how crucial exposing is with this camera to get what you want. With some others I've had I could fudge more but this one you really need to watch. I don't know what you're looking for dynamic range wise but if you're exposing to keep your sky blue, there's only so much you can expose in the shade. If you're exposing a sky and the rest in shade expect to choose one or the other most of the time. If your subject was less in shade and more in the sunlight that's lighting up your sky, that would be a different story.

I don't know what you mean by grainy but there's times with my footage that it's more the compression than actual video noise. Go plug in your camera to watch the footage on a TV...it'll look great. Computer monitors are always going to make your footage look worse than a TV will, especially when it comes to compression and noise/grain. It's hard to remember while you're working with your footage but every single time I'm thinking my shadows are too noisy or my footage compression is going to ruin everything I go watch it on my TV and it looks awesome.
 
Hey Kyle, Thanks for the quick and also positive reply :) I probably just needed some calming down so thank you. I haven't actually watched it on my tv yet so I will do in a bit - i didn't know monitors make the footage look more compressed so thats a relief. Cheers dude!
 
Surely people can get a nice blue sky and buildings etc in shot and correct to, as eye wise we manage it every day even on sunny days.

Even your eyes have limited dynamic range. It's just your brain does a sort of composite so you perceive no limit. Same with focus.

You need to work within the medium's DR, or compress the scence's, with lights, bouncers, &/or grad filters.

Might even be able fix it somewhat in post, but that's always my last resort.

-Bern
 
It's possible...trust me.

buffalodr.jpg
 
Nice! Also how do you guys upload footage on the net? What type of file do you usually make your footage?
 
I usually put it in a mp4 container. For compression I use h.264 at 5 to 10 Mbit/s with CBR. This I found brings the best results. You could also put the footage in a flv container. For transcoding I use Adobe Media Encoder.
 
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