DSLR Settings in warmer weather?

[pfitzgerald (Paul)]

Ok. I know that it's been a while, but I've saved enough bickies for an Astronomik CLS filter but realised that I forgot to ask one question.

With a Canon 60Da DSLR do I need the CLS or the CLS-CCD? (Does the 60Da classify as a 'modded' camera?)

T.I.A. as I'm off to Bintel tomorrow or early next week to get one.

Paul

[MrB (Simon)]

There's a good thread about the difference over on SGL:
http://stargazerslounge.com/topic/83...cls-v-cls-ccd/

I have the CCD version* but haven't used it.

The 60Da is 'modified' but it's not the same as a full-spectrum modded camera where the UV/IR filter has been removed. The 60Da still has this, only it has an extended red range to increase the Ha sensitivity a little.
So, the non-CCD version will be ok.

Having said that, the CCD version apparently has better passband transmission figure, so shorter exposures needed when compared to the non-CCD version.

Edit: *Apologies, I have the Hutech IDAS LPS-P2. It is my Astronomik H-alpha filter that is the CCD version.

[pfitzgerald (Paul)]

Thanks for that Simon - I'm off to read it now.

Paul

PS So after having read the article in Simon's link it looks as though the correct choice for the 60Da would be the CLS-CCD filter.

+ve's: 1.Reduces LP significantly.
2. Reduces star 'bloating' by cutting out the IR and UV.

-ve's: 1. Longer exposures required to collect data.

Have I missed or misinterpreted anything?