Took advantage of some of the good seeing of late, pushed the 4 inch refractor pretty hard for this image. Shot at f/40 with a DMK21AU04 digital video camera....
To quote a real redneck.... "THAT's funny, I don't care who you are, That right there is FUNNY!" I heard about this post and had to join the group to really...
Yeah, small pixels, good sensitivity, low noise electronics and a killer progressive scan CCD. It's my primary eyepiece for lunar and planetary. Cheers Jim ...
Finally dusted off the 6 inch Mak-Cass and did some lunar imaging with the DMK21 camera. Unfortunately, the high pressure system and relatively good seeing...
Hi all, I need to get an SCT threaded male/female extension tube, around 12mm (1/2 inch) in length. Anyone know of a local machine shop they've used to do...
PreciseParts is not local, but they have fast turn-around-time, and make precision adapters for just about any application. www.preciseparts.com - jg...
I am also looking for local SF bay machine shop ... need to make some changes to the Lumicon GEG metal housing, would require local shop to show and explain...
Is there a 2` adapter/ring that allows rotation of CCD camera inside the focuser while searching for a guide star without really loosening camera's ...
Check w/ hutech. You might have to call him and ask. They do have some rotators but its unclear to me if they would just work. Still pricey, but maybe...
When they're good they're very good - and when they're not they're still pretty good! This image is definitely in the second category but I still like it. ...
You're right about a couple things....although I've seen better (Hubble), I've not seen better today.(lost the Hubble link) Second, yes, the imaging learning...
Hi, Is there anyone here who has experience with imaging on film? I used to do a lot of film photography and processing/printing back a few, umm, decades ago...
I cut a bahtinov mask on my CNC machine (considered selling them for a while). They work extremely well, but the focusing image might be too small to be...
Before I switched over to autofocusing (really not too long ago) I used the Bathinov mask on 4" and 9.25" scopes. It's quick and amazingly accurate considering...
Any relation to Boris Bahtinov? Looks like an interesting focusing aid. I would highly suggest the use of a focusing mangifier if you want to clearly see the...
Thanks Steve. I'm pretty sure I'm not going to put the Hubble out of work any time soon :) I was a unhappy with the background noise (especially around the...
Thanks to everybody for the good advice. It seems pretty encouraging so far. My wife has an old EOS rebel 1000 film camera. The shutter is battery powered so...
BTW if anyone is interested in actually *buying* one of those masks, there's this other site that sells them quite cheaper than the spike-a.com site. It's...
Good tip! Not only are they cheaper they put their patterns up on the website so you can make your own if you like. Still their prices are so good that I'm not...
I think 30yrs of film imaging was enough for me before switching to CCD. Like John, I have a collection in the "museum" which would be fun to run some film...
Hi Paul, Thanks for the retrospective. I wondered why I have fond feelings the smell of vinegar and your posting reminded me that it was probably having fun...
I am in the process of creating a series of education videos. I would like to license wide angle photos of M 31, M-11, and a globular cluster for inclusion in...
... Drew also got a most impressive APOD on 2/24/09 just a week ago: http://antwrp.gsfc.nasa.gov/apod/ap090224.html Dude's on a roll!! What many people don't...
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