Just a very quick pic with my new canon 450 D,there is a bit of Amp Glow in top left corner,do other 450D users get this,it 2minute 10 second xp.at 1600 iso
Can this be eliminated with in camera noise reduction?i can crop it out,
but eas hoping not to have it,as camera is brand new.
Does the 450D have 10 times mag,in live view?,i really had time for very basic test last night,the image had to be reduced 3 times before i could up load
hope some one can give a few pointers,its a really good little camera
Not a bad image Chris, and yes that does look like amp glow. A bit of a diferent position to my old 350D but it sure looks like it is. Try not to keep the live view active for too long as this will heat up lots inside the camera. This may even account for this hot spot.
Hi Chris. I've been very pleased with my 450D. I've never seen a glow in that position, but Doug may be on to the problem re Liveview. I only use mine briefly to get focus right. Once I have it talking to the laptop and focused I turn off the camera display all together to save batteries and heat and drive from the lappy.
I might be wrong, but I'm pretty sure you get 1x, 5x and 10x on the LCD screen, but only 1x and 5x on the laptop. Peter 4059 had a great idea in another thread - uses magnifying software on his laptop for a bit of extra clarity while focusing with Bhatinov mask....
I think that when using Remote Live View on a PC, the Zoom View Window is a 100% actual pixel size view of the sensor, restricted to the region of interest defined by the (floating) white rectangle?
I had a closer look at this last night while playing with my new Bhatinov mask. The camera does of course cycle through 1x, 5x, 10x from the LCD buttons as Doug says. On the laptop, it opens in 1x, there's a button for 5x (doesn't have "5x" on it mind you...) and over to the right there's a check box for "200%" that gets you up to the final 10x view.
Magnifying software over the top wasn't overkill even on 10x I found too.....
Hmm, this must be model specific? The 40D EOS Utility Manual states that when using Remote Live View on the PC, the Zoom View is a 100% rendering of the image. I must check the EOSU software settings next time I connect, to see if the latest SW release has overtaken the manual.
Also, the 40D rear LCD is only a low res 230,000 pixels and I think some of the later Canon models are over 900,000, following the Nikon lead.
I have the 1000d and I have found that if I shoot directly from live view I get a similar red patch. I personally think it is not a thermal problem from live view, but a read issue.
I did some experimenting and I found that If I switch off live view, even for a fraction of a second then start and exposure I get NONE of the red blob. If I shoot from live view it is always there (in exposures over 5 seconds). So for my camera I dont think it from heat building over time in the sensor.
