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Perhaps the adverse effect is related to infrared light, given the strength of ND filter in conjunction with long exposure.Shoot an image at 30min with Singh-Ray 15-stop Mor-Slo (95mm thin ring). Bang!
a) My friend also gets the red cast with Schneider IRND;voidshatter,
Perhaps the adverse effect is related to infrared light, given the strength of ND filter in conjunction with long exposure.
Sure I'll add that to my test listI don't have a dog in this fight. Never done long exposures beyond 5 minutes or so.
Just wondering, is there a particular time cut off where the red cast appears? Would you be able to take exposures at say 5 minute intervals to see exactly how long it takes? Just curious, it may be to do with the sensor heating up and causing the problem after a certain length of time.
The big deal is that you miss opportunities in real world usage e.g. sunset/sunrise. You also get only half the success chance of the IQ250/D810 etc. You also have half effective battery life. Shooting darkframe in 2016 really? :shocked: No thanks, not for an expensive camera like this.I have gone to 16 minutes plus 16 of black frame with no problems. What is the big deal here, just turn off aerial and bit the bullet of double time like most photograhers do.
It would take several weeks if a unit is sent back to Phase One. If we can isolate the problem and let Phase One reproduce it with their own units then it saves us time sending our units to Phase One. Also it would be helpful to make the public aware of the issue so that Phase One can deal with it actively. The down side is that the current owners will not be happy with it.Is there some reason that this conversation isn't with Phase?
I once had a problem with my IQ 260. I called the dealer.
IQ3 100MP aerial mode + zero latency + not first image since power on + 30min long exposure + without any adjustment (and without LCC) straight out of the camera:Yunli,
Would you please provide a screen shot for us of the image with the red cast (CF006566) as it came out of the camera with no adjustments? I'm trying to compare it with my results.
Thank you,
Dave
Thank you. That makes more sense especially since you are using a very short exposure dark frame.IQ3 100MP aerial mode + zero latency + not first image since power on + 30min long exposure + without any adjustment (and without LCC) straight out of the camera:
Left: 23HR; Right: 40HR
Sure I'll add that to my test list.Also, as has been previously discussed, you are forcing the back to use a 1/60 sec dark frame for a long exposure. Please try taking an initial exposure of relevant exposure time. Knowing how the back uses the dark frame that would make a lot of sense, and would not create "missed opportunity" issues in the field.
Dave
Naw, it just means a new inning. You have to wait for the pitcher to warm up again.c) Swapping battery in the field means game over.
Sure there is. The 3100 has a lot less field time vs the sensor in those other two products. Well, maybe it is not an excuse, but it could be a good reason.There is no good excuse when the IQ250 and the D810 can do the job without such issues.
Well I definitely don't want to shoot a darkframe when I swap battery while the cloud looks beautifulNaw, it just means a new inning. You have to wait for the pitcher to warm up again.
Sure there is. The 3100 has a lot less field time vs the sensor in those other two products. Well, maybe it is not an excuse, but it could be a good reason.
Dave
This is for you Chris - a test with the XF+ camera body and a Schneider 55mm f/2.8 LS.Yes and before doing that I still would like to see a XF/DF image from that back. As my guess is still rech camera problem.