Thalestris24

Hi If I'm reading that right, when using the original sensor with say light via Sii, which is just a narrow band of red light, then the responses from G, G2 and B pixels are really colour 'noise' since ideally you'd want the G, G2 and B pixels to be 0? Cheers Louise

Hi When I (eventually!) get the debayered 1100d I ordered ages ago... I'll be able to do a direct comparison with my standard, unmodded 1100d. I'll probably just do some shots through my canon 75-300mm lens, initially. At the moment I'm not sure how best to process the mono raw files but I'll figure something out The mono 1100d has been ordered from JTW but they are a bit slow... Fwiw, during discussions they said: "The debayered sensor loses the microlenses but gains resolution and sensitivity. There is a bit loss of about 30% from the microlens removal but an even bigger gain, just under 1 stop is about average." The proof of the pudding, as they say. I'm not expecting the mono 1100d to then miraculously become a great camera - it will still be uncooled and noisy. It will still need dark and flat calibration frames. There are bound to be imperfections from the debayering - flats will be essential to help cover them up, and for vignetting, of course. But, hey, it'll still be 4272 x 2848 That alone is pretty cool Cheers Louise

Hi Not in my case! I have a ccd... Light definitely leaks in through the mirror end but it probably wouldn't matter in normal use i.e. in the dark. Louise

Hi Funnily enough I noticed this the other day when testing out the new Ascom driver for my qhy8l. I was taking sets of darks during the day and was dismayed to find that long exposure darks weren't! I put black bags and even foil over the front end - over the endcap. There was still some light leakage so decided the mirror end needed covering too. I was also stretching the darks looking for signs of amp glow and was surprised to find I could stretch them to white. Never tried it before and had assumed that if an image was totally dark that it couldn't be stretched. Of course, I'd forgotten the bias noise would still be there! This realisation prevented me from becoming paranoid about light leaks - I think! Louise