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Afocal Double Cluster


lunator

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Having a go with my new fujifilm A850 I took an image of the double cluster through the ST120 & 20mm SWAN

It is a couple of 8 second shots stacked in DSS.

The conditions were not good as high cloud made the sky mag 3.

I was curious to see how faint I could go. I looks like mag 9-10 stars can be picked up. This should mean Mag 11 stars will be possible with the OMC250.

Here's the pic

Cheers

Ian

post-12723-133877347334_thumb.jpg

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Matt

The only way to get the 8 seconds is in 'firework' mode!!!

This limits you to ISO100.

I checked the image of MGC884 against aladin and worked out that Mag11 stars are just visible. Hopefully this means mag 12.5 should be getable in the OMC 250.

Cheers

Ian

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Cheers Mik

I think the SWAN suffers at F5.

In my F6 Newt & F9 OMC coma is less of an issue.

I was using it as it is relatively small eyepiece that gives a good FOV.

My hyperion is less coma-prone but is a bit too large for the afocal camera bracket..

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