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Old 13-01-2019, 06:39 PM
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that_guy (Tony)
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M42 + Horsehead with Canon 70-200mm F4L

Picked up this lens second hand for $400 off of gum tree. Turned out to be a ripper! ZERO CA, sharp stars. The only "issue" is the coma at the edges of the field due to the full frame. I'll try stepping it down a few F stops to see if it helps but I'd prefer to image at wide open if possible. I sort of just pointed it roughly at SCP and let it go. I could get 30 seconds without significant trailing and did about 160 or so subs which were cut down to 100 or so after I realised the last 60 were useless due to dew.

Bonus Rosette from ED72 QHY8L AZ GTe EQ mount. Got this set up purring now. guiding successfully.

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M42 & Horsehead
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Last edited by that_guy; 14-01-2019 at 01:06 AM.
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Old 13-01-2019, 08:16 PM
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h0ughy (David)

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Very impressive and a cool result. Definitely wow factor in that for me
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Old 14-01-2019, 07:04 AM
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RickS (Rick)
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That's very cool, Tony.
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Old 14-01-2019, 08:32 AM
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CJ (Chris)
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Very nice!
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