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Comment: Library Size Too Large.... (Score 1) 212

by mcnazar (#35277148) Attached to: First Alpha of Qt For Android Released

A very impressive demo - and nice eye candy right at the start!!

My only problem with this is the sheer SIZE of required QT Libraries.

During the demo, the author downloaded over 25MB of QT Libraries to run some simple applications. 25MB is just too much.

My HTC Desire 2.2 hovers around the 25MB-30MB free space due to having only about 150MB internal memory to play with (the rest of the 256MB is taken up with bloat that came with the phone and cannot be removed).

I guess this will become far more relevant as the next gen phones hit the scene (these typically have >>> 512MB memory).

Still, very very very impressive.

Comment: Re:Just a DSLR (Score 4, Informative) 85

by mcnazar (#33109178) Attached to: Equatorial Mounts For Budget Astrophotography?

>like the free Deep Sky Stacker to align them into a final image with total exposure time equal to all the shots combines

This is excellent advice on getting a much improved image quality but do note that stacking images will not give you the same results as a single image using the combined stack times.

In other words, if each image in the stack is 20 seconds then 10 stacked images will not give you an equivalent of a 200 second exposure.

Stacking 10 images simply improves the image quality by removing hot pixels. The result, however, is still a 20 second exposure.

The single 200 second exposure image will contain fainter objects (and more noise) when compared to the stacked 20 second image.

Input Devices

Equatorial Mounts For Budget Astrophotography? 85

Posted by timothy
from the rubber-band-and-hope dept.
Timoris writes "With the Perseids approaching rapidly, I am looking for a good beginner's motorized equatorial mount for astrophotography. I have seen a few for $150 to $200, but apparently the motor vibrations make for poor photographs. Orion makes good mounts, but are out of my price range ($350) and the motor is sold separately, adding to the price half over again. Does anyone have any good experience with any low- or mid-priced mounts?"

I'm gliding over a NUCLEAR WASTE DUMP near ATLANTA, Georgia!!

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