here's my favorite imaging place away from home. http://www.narrowbandimaging.com/fremont_peak_state_park_page.htm advantages for me: 1) get above the clouds...
From a couple of months ago, a medium field image of the Rosette: http://www.buytelescopes.com/gallery/photos/13107.jpg I can never decide what is the best way...
You guys scare me. I just roll out of my garage (30 ft?) to image, but perhaps 8 out of 10 nights are a zero. Weather is a big issue, the "clear sky"...
when i do go out like that I seldom do much else that weekend. for a saturday night outing I usually start my preps on sat morning, getting things organized...
... OK, it was Hubble's Variable Nebula. I used a different palette than is normally used. The palette was in part due to some new filters I bought a while...
Still here Richard - still at 51 degrees north. Unfortunately we have a wee lack of darkness at this time of year. At 10:30pm last night I stepped outside and...
i received a few igrams recently from a friend in europe and thought these were interesting enough to share with the group. in my opinion interferograms and...
The Barr Associates filters that I've been buying lately come with an interferogram to demonstrate surface quality (flatness and smoothness), and a 6-decade...
more blocking takes more cavities more cavities takes more layers of controlled dielectric deposition. that adds cost. so long as you have ignorant customers...
I plan to go to Fremont Peak after work today. I am halfway there by leaving straight from the office. I hope to take widefield emission line images using the...
to get this image: http://www.narrowbandimaging.com/ic1396_p150_6303_baader_s2hao3_page.htm the first trip to fremont peak succeeded in capturing Halpha the...
Richard, Now that's a widefield image. The widest I can currently get to is just 384mm, much narrower than your 150mm FOV. I once tried to fit my Canon EOS...
thanks Michael. That spacing you mentioned is why i used medium format lenses: much more back focus, about 87mm well basically that and the fact that they are...
sometimes I can just walk out into the backyard and image all I want. Other times, like this time of year, we get the marine layer nearly every night. It is a...
Richard, You have me thinking once again <G>. I have a old Takumar 55mm f1.8 T-threaded lens from a Pentax SLR and it threads onto the D-block of my...
I say go for it, besides it makes you prolong the bad weather once it is ready for testing under nighttime skies :-) but seriously you can stop it down and...
I'd say the trips were worth it! Nice looking image, Richard! ... From: Richard Crisp To: narrowbandimaging@yahoogroups.com Sent: Saturday, June 09, 2007 11:54...
Thanks for the head's up on tilt. I just noticed that the lens thread and t-threads differ in pitch slightly. It screws in just one thread before binding. ...
the pentax lens is 42mm with 1mm pitch the T thread is 42mm 0.75mm pitch I am relying on memory but it is easy to find with Google ... From: Michael Howell To:...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the narrowbandimaging group. File :...
narrowbandimaging@yah...
Jun 10, 2007 6:39 pm
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I've uploaded a first light pix from friday night using an FCT 100 w/reducer and proline 16803 also used was a new 7 NM FLI ha filter in 50 mm square size ...
Skies cooperated, moon stayed in its place, and I got some time in the late nights for the always popular M8-M20 widefield composition (I see Bruce is just...
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