Bahtinov mask in live view

[look out hes above u]

Does it work well when I put it on my scope with my camera attached in live view

[ChrisLX200]

Yes it does. Use a bright star and an exposure time long enough to show the fainter diffraction spikes.

ChrisH

[jambouk]

You often need a bright star to see it in live view.

If your camera can send the live view image to a laptop, then use some free ware called bahtinov grabber which tells you how near critical focus you are; remember in live view critical focus will change constantly (and rapidly, depending on your "refresh" rate) so focus will be good, then bad, then good all the time, it's just a case of getting it mostly good.

James

[Chuggs]

Should work. I whack up the ISO to get a better LiveView image of the star through the mask (and then usual forget to drop it back down again before imaging).

C.