View Single Post
  #28  
Old 23-11-2008, 11:04 AM
TrevorW
Registered User

TrevorW is offline
 
Join Date: Aug 2006
Location: Western Australia
Posts: 7,866
Second set of test shots showed that although it appears there was no reduction in noise level you may notice a gradual drop in the file size after the Peltier was turned on ?? Each frame was reduced to 800X532 in PS7 saved as JPEG quality level 5

A further test run will be turning the Peltier on and leaving it on for a least a half an hour before turning the camera on and taking frames

Attached is the second run of test images ambient temp was 24C, camera was turned on over 10 minutes before 1st frame then Peltier was turned on, each frame is 15 minutes apart camera was left on during each frame,

Camera setting; Auto shutdown OFF, frames 90 seconds ISO 800 INCR OFF.

Final cold plate temp was around 2c
Attached Thumbnails
Click for full-size image (peltier test 1.jpg)
58.7 KB15 views
Click for full-size image (peltier test 2.jpg)
62.4 KB12 views
Click for full-size image (peltier test 3.jpg)
59.4 KB12 views
Click for full-size image (peltier test 4.jpg)
57.2 KB11 views
Click for full-size image (peltier test 5.jpg)
55.8 KB17 views
Reply With Quote