Focusing problems. Fear no more.

[Mac]

Having focusing problems then have a look at this page.

http://www.njnoordhoek.com/?m=200903.

very interesting in how he does the measuring.
It doesn't matter what camera you are using he just does a screen grab
and analyses that.
takes all the guess work out

Mac.

[Mike]

That looks excellent. Have you tried it yet ?

[MarkS]

Wow, that looks really good.  In fact it saves me a programming job because exactly this functionality was going to be my next astro-project.

I've currently been using Nebulosity in "fine focus" mode but quickly realised that focus could be estimated more accurately directly from the diffraction spikes in a Bhatinov image, if only it could be digitally analysed (since it can't be judged accurately enough by eye).

Mark

[Mac]

That looks excellent. Have you tried it yet ?

Not yet, probably wont get a chance untill after the move, but i've got it installed.
Might have a play with images taken with the mask though.

Mac

[Carole]

Wow, must plug in laptop and download that, thanks Mac.

Carole

[PhilB]

Thanks, Mac. I'll give it a try next time out

[RobertM]

Good find Mac that very useful...

[Mac]