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Old 28-08-2012, 11:04 PM
Starman99
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8300 microlens effect

I prefer as round a star as I can get and thus use a refractor to help prevent diffraction spikes from appearing on brighter stars. I'm considering purchasing an 8300 camera, However this chip does show a slight starburst effect on brighter stars due to the chip's microlenses.

Does this little starburst effect on brighter stars appear the same on FLI, QSI and SBIG 8300 cameras? Or are some cameras better than others in minimizing this effect? Is there a simple way to process this out? Thanks! Rick
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Old 29-08-2012, 06:11 AM
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Quote:
Originally Posted by Starman99 View Post
I prefer as round a star as I can get and thus use a refractor to help prevent diffraction spikes from appearing on brighter stars. I'm considering purchasing an 8300 camera, However this chip does show a slight starburst effect on brighter stars due to the chip's microlenses.

Does this little starburst effect on brighter stars appear the same on FLI, QSI and SBIG 8300 cameras? Or are some cameras better than others in minimizing this effect? Is there a simple way to process this out? Thanks! Rick
I doubt the brand would affect that.

The only thing that may is the FLI and Apogee models offer a no cover slip on the CCD option which reduces minor halos on brighter stars.

Greg.
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Old 29-08-2012, 06:44 AM
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The ML effect is more apparent on faster optical systems.
For f/ratios greater than 7, you probably won't see the effect.

SBIG incidentally has software to remove the ML effect.

Regards

Steven
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