Search found 1210 matches

by Meng Lee
Wed Jul 20, 2011 5:55 pm
Forum: Buy and Sell
Topic: WTS: 2 CCD cameras
Replies: 3
Views: 1420

Hi all,

There is actually a third CCD that I will sell soon. That is the kwiq guider but with the Orion version of QHY5 but the finderscope holder is not included. I will sell it when I get my new guiding camera.

It is possible to reserve with me now. Priced at S$350.

Meng Lee
by Meng Lee
Sun Jul 17, 2011 8:32 pm
Forum: Buy and Sell
Topic: WTS: 2 CCD cameras
Replies: 3
Views: 1420

Hi, Thanks for asking. 1) I forgot to specify that all filters are 1.25". 2) Ya, either buy set 1) or 2). If there is interest in both, contact me in private, I will give special discount. 3) Essentially, at the same image scale, the monochrome setup gives u roughly 4x more clarity but much smaller ...
by Meng Lee
Thu Jul 14, 2011 1:36 am
Forum: Buy and Sell
Topic: WTS: 2 CCD cameras
Replies: 3
Views: 1420

WTS: 2 CCD cameras

Hi all, I haven't posted for a long time and now this post is about selling my cameras. The reason is simple, I need to upgrade. 1) Orion Starshoot Pro V1 (6.1 MP colour) - S$1100 (with case + 2 cables + software) (For people who are thinking of modded DSLRs, this Orion camera is like the modded cam...
by Meng Lee
Sun Jul 11, 2010 12:29 am
Forum: DIY Astronomy
Topic: Anyone knows how to change or shorten the Starblast focuser?
Replies: 27
Views: 6421

Hey, I like the phrase "cheesy raw". Indeed netbooks work well and last long enough. (But I don't think I recommend netbooks for planetary photography.) Well there are 2 ways: 1) Big batteries. Try to calculate the total current drawn by the goto mount and the ccd camera so as to determine if the po...
by Meng Lee
Thu Jul 08, 2010 1:28 pm
Forum: DIY Astronomy
Topic: Anyone knows how to change or shorten the Starblast focuser?
Replies: 27
Views: 6421

Its up to you to decide. Do you want wide or resolution? Of course, if u want both, then u need extreme equipment. Equipment with long enough focal length to give u the resolution and enough megapixels to give u the wide field. Then the scope will need a huge corrected flat minimally vignetting view...
by Meng Lee
Wed Jul 07, 2010 1:38 pm
Forum: DIY Astronomy
Topic: Anyone knows how to change or shorten the Starblast focuser?
Replies: 27
Views: 6421

Hello Mr Chris,

I owe u this formula.

Resolution, or more correctly, sampling is given by,

Sampling (arcseconds per pixel) = (206 x pixel size in microns) / (focal length in mm)

so it has nothing to do how many mega, giga, tera pixels.

Meng Lee
by Meng Lee
Thu Mar 25, 2010 2:27 pm
Forum: Astrophotography
Topic: automatic mosaic-ing / drizzling software?
Replies: 6
Views: 1680

Hi, I think newbies should know this technical reason why some people go for webcam shots and why some people go for DSLR shots. (Good) Webcams can take shots at 30 fps or faster to capture a series of shots that consists of sharp and atmospheric-blurred pics. We then stack the sharp ones. This is f...
by Meng Lee
Tue Feb 02, 2010 4:59 pm
Forum: Beginners Forums
Topic: Polar Align in Singapre
Replies: 3
Views: 1527

Hi,

I am using Atlas, aka EQ-6 without mount extension. It can go down to our 1 degree latitude just that large counterweights can hit the tripod legs when swinging in RA past the legs.

ML
by Meng Lee
Tue Feb 02, 2010 3:53 pm
Forum: Astrophotography
Topic: Mars pics on 29th Jan 2010
Replies: 10
Views: 2648

Hi,Meng Lee Your pic fantastic and your skill really pro.You know the C11-at least mind--is difficult to focus due to mirror shift problem.As you increase the elevation of your scope,the mirror MAY shift and you are out of focus again.Its very troblesome and c11 dont have mirror lock.You have to fo...
by Meng Lee
Mon Feb 01, 2010 12:12 pm
Forum: Astrophotography
Topic: Mars pics on 29th Jan 2010
Replies: 10
Views: 2648

ebeyonder wrote:Wow another very nice capture :)

What was the imaging camera if I may ask?
Oh hi,

The camera is Lumenera Skynyx 2-0M.

ML