F35: Green and Blue Lines when shooting Wide Open

paulears said:
Are you positive it's not just chronic overexposure saturating the sensor. what is performance like when exposure is within usual limits? Any anomalies visible then?
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The camera performs fine unless the lens is wide open and a light source is hitting the lens. The anomalies are not always as crazy as you saw in the video but there are still vertical lines present.
 
I work with Cooke 18-100 quite a bit and holding the camera flat makes mounting that beast a Breeze. Looks like you got the lenses to work based on your other post?
 
yachacha said:
I work with Cooke 18-100 quite a bit and holding the camera flat makes mounting that beast a Breeze. Looks like you got the lenses to work based on your other post?
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I actually haven’t been able to put the other lenses on it. The latest post has a link to the footage I shot the same day I filmed the blue and green anomalies. I’ll be trying this weekend to figure it out.

Do you know if there’s a thread somewhere showing how to update the firmware? I’d like to try that.
 
Google: Sony F35 firmware. Open first link. PDF has complete directions. You need Sony memory stick- get a small one 1-2gb. 8gb and 16gb didn’t work in mine. Best to format the card in camera first.
 
Folks, watch your sensors with direct strong lights like these... You can damage them irreversibly. The smaller and stronger it is the more likely it will do some harm. Let's keep our CCD gals and boys safe!
 
What you are seeing is CCD vertical smear from severe overexposure. If you use vintage PL glass designed for film cameras that don’t have modern anti-reflective coatings it will be worse. Does the F35 have scopes? Waveform? If so you can monitor the clipping to determine optimum exposure with ND’s or with the lens stopped down.
Smears are worse in extreme high contrast situations like a dark figure silhouetted against the sun.
 
DIRECTORDEVIN said:
Hey there,

Did you ever get this lens onto the camera? Asking because I’m thinking of getting the same lens. Let me know thanks so much in advance.
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Remove the camera mount ears - attached with screws and it should lock down. It is a known issue with the F35. You will have to DIY another system to turn the locking mount. Hard to do with just your fingers.
 
Razz16mm said:
What you are seeing is CCD vertical smear from severe overexposure. If you use vintage PL glass designed for film cameras that don’t have modern anti-reflective coatings it will be worse. Does the F35 have scopes? Waveform? If so you can monitor the clipping to determine optimum exposure with ND’s or with the lens stopped down.
Smears are worse in extreme high contrast situations like a dark figure silhouetted against the sun.
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Yes, Vertical smearing. It's even in the first ever video posted on this blog about the F35 by MacGregor. Check it out - scroll to 2:03 - Jiust don't blast your EFFING sensors!

 
rbirnbaum said:
Remove the camera mount ears - attached with screws and it should lock down. It is a known issue with the F35. You will have to DIY another system to turn the locking mount. Hard to do with just your fingers.
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Really? So far I love how this camera just keeps getting more interesting by the day. Appreciate the tip.
 
rbirnbaum said:
Yes, Vertical smearing. It's even in the first ever video posted on this blog about the F35 by MacGregor. Check it out - scroll to 2:03 - Jiust don't blast your EFFING sensors!

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So this is the result of shooting into the sun, or is it exposing the sensor to the sun without a lens on?
 
Obviously there is a lens. This isn’t just vertical smear, it is also blooming. That happens when excess photon charge on overexposed pixels overflows into adjacent pixels. On CCD’S with good smear control the excess charge is bled off to ground via drain structures between pixels. But the best smear control was maybe 300% over clip point voltage, about 1.5 stops over.

Bottom line, monitor and control your exposures to prevent this. You are dealing with at best a 10 stop DR camera. Correct exposure is critical for best results.
 
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I always thought the f35 had at least 12 stops and for me I even get more then that at times. 10 stops I wonder what made you think that?
 
DIRECTORDEVIN said:
I always thought the f35 had at least 12 stops and for me I even get more then that at times. 10 stops I wonder what made you think that?
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I hate to divert from the main topic, but where is this notion of digital cameras having 12, 14 or 15 stops of DR coming from? What kind of tests corroborate that? Personally, I don't think there is a digital camera ever made that reaches 10 stops of DR. 10 stops are a huge range as is.
 
RayZan said:
I hate to divert from the main topic, but where is this notion of digital cameras having 12, 14 or 15 stops of DR coming from? What kind of tests corroborate that? Personally, I don't think there is a digital camera ever made that reaches 10 stops of DR. 10 stops are a huge range as is.
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So you don't believe that any camera has the dynamic range they claim they have? 10 stops is plenty yes, but 12,13,14,15,16 stops all exists and they are plenty too. If you feel the topic of dynamic range is becoming a bore and drawn out i can see how claiming that 10 stops is a huge range in other words "who cares about all this dynamic range stuff 10 stops is plenty so hush" What tests prove there are more then 10 stops? I promise you there are others here who are more technically inclined then i am who can answer that, but i promise you if you go to YouTube to check out any cameras true dynamic range test you will find loads of people popping up with the same findings. Or, have you already done the tests and "know for sure: that over 10 is a miracle? Not being a smarty pants i'm genuinely interested.
 
RayZan said:
I hate to divert from the main topic, but where is this notion of digital cameras having 12, 14 or 15 stops of DR coming from? What kind of tests corroborate that? Personally, I don't think there is a digital camera ever made that reaches 10 stops of DR. 10 stops are a huge range as is.
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10 stops is the mathematical limit for any REC709 compliant video, so that is what you wind up seeing even if the camera can capture significantly broader range. Moving into REC2020/2084 and HDR bumps that a bit. Values captured outside that range are either clipped or compressed to fit within it.
 
Razz16mm said:
10 stops is the mathematical limit for any REC709 compliant video, so that is what you wind up seeing even if the camera can capture significantly broader range. Moving into REC2020/2084 and HDR bumps that a bit. Values captured outside that range are either clipped or compressed to fit within it.
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Gotcha, so in that case then any camera for that matter even if it shoots 100 stops will only display 10 stops once shown in rec 709?
 
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