Re: North American/Pelican area in wide field Ha


You may want to consider a custom part from one of the local 3D printing services in the area.  If you can design it?




From: backbayastro@... [mailto:backbayastro@...]
Sent: Thursday, July 16, 2015 12:36 PM
To: 'Stu Beaber' wd4sel@... [backbayastro]
Subject: RE: [backbayastro] North American/Pelican area in wide field Ha



I'm looking at options to adapt an ASI174MM to Nikon F mount lenses. The len's required flange focal distance is 46.5mm. The ASI174 sensor to flange distance is ~17mm. Most solutions I'm finding are expensive (i.e. preciseparts and  geoptik) and don't leave any room for adding a filter wheel. I have a salvaged F mount that can be McGyvered onto an appropriate T2 extension adapter. A variable T2 adapter would be ideal but the range would have to rather small ~1-20mm or so. What lens and adapters are you using?


It would be awesome to be able to get these two items together! 






-------- Original message --------
From: "'Stu Beaber' wd4sel@... [backbayastro]" <backbayastro@...>
Date: 07/16/2015 12:14 (GMT-05:00)
To: backbayastro@...,NAS <1NorAstroSoc@...>
Subject: [backbayastro] North American/Pelican area in wide field Ha [1 Attachment]


It's been a rough summer for most of us imagers (rain/clouds). Last night was the first time out for me in about 6 weeks. I used my camera lens at ~120 mm on my QSI583ws camera. About 10x7 degree FOV and shot 6x10 minutes Ha of the North American area. This area is loaded with objects and lots of scattered dust & gas as well.


See on my site for technical details or just enjoy the attached image.



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