[Emanuele]

HI all!

After playing around for a while with my Canon 40D I am now considering the purchase of a CCD!
I'm missing colors on all the emission nebulae around galaxies arms and such with my non modified Canon!

So here's the question:
Since I am imaging at 800 mm or less, smaller pixel sizes should be used right? 5.7 or 5.4 um would be ideal, correct?
What are the effects of bigger pixels, such as the QHY8 at 7.4 um?

Would you recommend going with a QHY8 for my Pentax 125 SDP? IS there anything else out there that has the same CCD area of the QHY8 or my Canon 40D?

Also, I'm using a Mac with PHD Guide and Nebulosity for imaging acquisition!


Thank you!
E.