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Re: [APML] Omega Centauri




>> http://world.std.com/~mattb/gallery/astro/wcen.html

Thanks everyone for your comments and suggestions...

>At 10:48 PM 4/22/2002 -0400, Franklin A. Holub wrote:
>Great image! I can't come up with anything but praise... But I do have a
>question... What did it take to get your AP equipment to Chile and back in
>"one piece"? Any light you could shed would be great!

To make a long story short, I brought six large cases, mainly Pelican 1650's. The total excess bag fees turned out to be only $275.

>From: "John C. Mirtle" <jmirtle@shaw.ca>
>Nice image Matt, that's two for two. You say there are 68 more to go??? I am
>curious about one thing. Did you send your PPF to Chile four years ago in
>some kind of time warp? I thought that pretty much all the PPF lying around
>was well past it's prime and pretty much pooped for AP. The shots from you
>and Loke seem to show otherwise.....

A while back I found a bunch of PPF 400 120 for sale at a photo clearance. I bought all of it and put it in the freezer. I think it has been deteriorating slightly. The frames have some blotchiness and other artifacts that I have to clean up. I took quite a few shots on 400F as well, and I would say that is the film of choice for medium format now.

>From: "Chris Schur" <cschur@cybertrails.com>
>Matt, a very decent 3D effect, I think because of the wider than normal
>field you are portraying.  Impressivly tiny stars!  Are these auto or
>manually guided?

All the shots were guided by an ST-4 at 700mm. 90% of the time during teh trip I got A1's. However I noticed on this shot that for some reason the ST-4 had difficulty and got some A3's, which can be seen in the ovals stars in this image.

>From: "Chris & Jennifer Cook" <ccjd@ix.netcom.com>
>To me, all the stars have a very slight magenta cast.

Yes, I think you're right about that. I've adjusted it.

>In your notes you indicate 73% humidity........that seems really high for an
>arid desert.  Isn't that region of Chile a desert?  Is that kind of humidity
>normal for around there?

All of the sources of info said that one should expect RH of 30-40%. I brought dew heaters "just in case", and it turned out, they were sorely needed. I wish I'd brought a second controller, for the star trails camera. Most of the nights were dewy and some were as dewy/drippy as any we've suffered through in the NE US. 

On the second night, the clouds rolled in, so I went back to the hotel. Then it started pouring. An inch of rain fell, which the locals said happens only once a year. Then it took three more days for the humidity to work its way out of the environment.

>From: "Shekhar Borde" <shekhar@prodigy.net>
>Excellent shot!  
>Comment on the color: It seems to me that the red 
>stars may be a little too red and the blue stars not 
>blue enough.

I think some blue was lost in this shot due to the humidity. I uploaded an adjusted version.

>From: "Robert Gendler" <robgendler@worldnet.att.net>
>That is beautiful. There seems to be a slight shift towards the red.
>Could be my screen.

Again, I think some blue was lost due to humidity.
--
Matt BenDaniel
matt@starmatt.com
http://starmatt.com


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