Whether you care or not is not a concern of mine.
FS7: Warning! FS7 Reds
- Thread starter samtheman
- Start date
Whether you care or not is not a concern of mine.
NeedCreative
Well-known member
Wow all the negativity. Lol
Im not seeing this but I have seen plenty of examples of what looks like magenta CA from wide open lenses on speed boosters. I saw it myself....on multiple cameras.
I dont see the magenta shift or red noise however. None of that is evident in our footage. So yeah, I think this is an alarmist titled thread. "Warning: expose properly and use great glass wide open" might be more appropriate.
Im not going to snipe at you for posting it though! Sharing information is a good thing.
Im not seeing this but I have seen plenty of examples of what looks like magenta CA from wide open lenses on speed boosters. I saw it myself....on multiple cameras.
I dont see the magenta shift or red noise however. None of that is evident in our footage. So yeah, I think this is an alarmist titled thread. "Warning: expose properly and use great glass wide open" might be more appropriate.
Im not going to snipe at you for posting it though! Sharing information is a good thing.
Glad to hear that. I'm simply sharing information, that's what boards are all about. I'm testing with other glass soon.
Do your test with proper lighting though as Liam suggest, and see if you come up with the same results.
Yes, i shot in bright and low light from T11 to 2.2.
Liam Hall
Veteran
But you posting alarmists threads is a concern of mine. You start your opening post by saying you have "extensively tested the FS7". All I see is two lads sitting on a sofa. I don't see any empirical tests. Where are the charts? Did you use a waveform and a vectorscope? Did you use a colour meter?
Liam Hall
Veteran
Really?? Looks to me like you shot two lads sitting on the sofa lit by the TV and ambient light.
Doug Jensen
Carbonite Member
I fail to see the relevance of testing at various t-stops. The camera doesn't know or care what the t-stop is. A shot is either exposed properly or it is not, and anything that isn't exposed properly isn't worth testing right from the get go.
morgan_moore
Major Contributor
Testing at Tstop just a simple way of adjusting the amount of light hitting the sensor, one could test using a bunch of NDs, varying the power of the light source or changing the shutter speed. Tstop bracketing is just simple and fast. Vary anything - BUT NOT the ISO/Gain (which is your 'film stock').
You seem to miss that testing the sensor at different light levels is critical to understanding best use of a camera (for a given scene)
So light level is A and is reading 800ISO/50th/5.6 on your meter.
Take a shot at 800/50th/5.6 repeat at 800/50th/4 and 800/50th/8 (etc) and then try and match each file in post, one file will have more headroom and noise, the other the opposite, one exposure may put the image into the foot or the knee (causing some form of wonkyness)
It is the matching in post bit that is critical to the learning experience
It is just like film! You learn that a 400 stock rated at 200 and pulled a stop in the soup will have a different set of characteristics compared to 400stock cooked properly or pushed to 800 by cooking for longer.
Once you know your stock and how it behaves when pushed or pulled in the soup you can get the look from that stock that fits your needs the best.
The one advantage over film is that you can try 'developing' your file many times which speeds up the learning no end.
It is my suggestion that pull processing will usually render a noise free file, just like it has since about 1970 or before!
Thus far I would say that Slog 'stock' is 2000 cleanest when pulled to 800, Custom, well Ive not got on to that but guess that will will be different 'stocks' depending on the gain selected when shooting.
This image is an example of pushing and pulling Slog off the 2000 iso base.. https://dl.dropboxusercontent.com/u/33167160/ei.jpg The files are visually matched in post for broad brightness and contrast but we can see huge differences in the shadow noise etc.
S
Last edited:
eddavid
Carbonite Member
Doug simmer down man. You are more than your camera tests. Also you're a public figure. You shouldn't get phased . All be cool. We are just talking camera tests not some award winning art film like charlie chicken which just won a special jury prize at toronto film fest. Shot on fs7.
Last edited:
Doug Jensen
Carbonite Member
Why does everyone always think I'm pissed off or bend out of shape? I'm far from it. Amused is more like it.
Just because I have strong opinions doesn't mean I'm pissed. I'll tell you when I'm pissed.
Congratulation on Charlie Chicken.
Last edited:
Can you kindly show us a non-red chromatic noise video sample.
Thanks for your input.
morgan_moore
Major Contributor
I hope that was serious because thats exactly what you need to be doing before deciding a camera has bad reds.. it may do if you expose and develop it wrong.
It's always about the way the words are said. Either way, i know what exposure is and this final test got rid of all the problems. It did take 7 hours of shooting for the right recipe. Good luck with your tests.
Shot in Dim Light.
Attachments
Well put! Either way I will be buying this camera as soon as my situation allows, it's the best bang for the buck on the market and will serve me well for a long time.
ReelWorksMedia
Well-known member
...at least for the next few months. With the coming C300 mark II and NAB around the corner...I have a feeling we will have our choice of flavors and workflows for great new 4k images (within the range of a few grand).
Personally, and this is IMO, I think now is not a great time to jump into the market. I think the waters will be much more fruitful in the coming months - more than what the FS7 has to offer...or at least different.