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Rosette with Antlia Ha 3nm


Davy-T
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2 hours ago, peter shah said:

A little low in contrast but I can see how deep it is....Detail is great....I quite like the look of these Antlia filters

Haven't done any processing on it as such, hoping to get some more data, had 20 subs originally but a lot of passing cloud in some and ended up with 12 so only an hours worth.

Filters seem to compare well with my Astrodon 3nm, only got Ha ATM but O3 is on the way

Dave

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11 hours ago, Davy-T said:

Just about John, only took a few months, still a couple of niggly things regarding the primary mirror screws to sort out.

Dave

Have a Chat with Peter, Dave as he is an expert in these things and designs Scopes as well.

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2 hours ago, Jkulin said:

Have a Chat with Peter, Dave as he is an expert in these things and designs Scopes as well.

The primary locking screws can't be locked very much as they push the alignment out but if left slightly loose they work themselves undone, I've put some springs that I had around under them to keep them under tension but need to get some better fitting ones, they're also grinding into the aluminium of the mirror cell and could do with replacing with plastic ended ones, the primary adjusting screws screw though a casting with a spring on them but those springs are too big and fall off the side of the casting so need to fit some washers on them but it's useable.

 

Dave

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