Testing lpr filter on Modded cam. M42

kimo · Post by **kimo** » Wed Sep 05, 2012 10:32 am

I have just modded my cam and bought a sky glow LPR filter. still not yet try on nebula due to hazy sky in my area. I am fighting with low alt photography within 10 to 40deg. took some sample of the exposure 10sec , 60sec and 240sec. 240sec looks pink, Camera custom WB. Any comments on it?

30sec histogram 1/3

60sec histogram 1/2

240sec histogram 3/4

cloud_cover · Post by **cloud_cover** » Wed Sep 05, 2012 1:46 pm

Noise? Try doing a 240s dark at the same ISO and see if its pink as well

kimo · Post by **kimo** » Wed Sep 05, 2012 3:05 pm

Thanks. I took 4 mins dark. not much noise were found.

Post by **weixing** » Thu Sep 06, 2012 7:35 pm

Hi,
That's normal... it's cause by light pollution... worst now due to the haze.

Have a nice day.

kimo · Post by **kimo** » Mon Sep 10, 2012 8:37 am

Thanks. After some test realised that acceptable image was 1 -2 min exposure with LPR filter. I don't know if it is enough exposure for nubula photography? Thanks

Post by **weixing** » Mon Sep 10, 2012 12:05 pm

Hi,

kimo wrote:Thanks. After some test realised that acceptable image was 1 -2 min exposure with LPR filter. I don't know if it is enough exposure for nubula photography? Thanks

As long as you can get at least 1 min exposure, you are good to go.

Have a nice day.

kimo · Post by **kimo** » Mon Oct 01, 2012 1:28 pm

No LPR...

I have taken M42 easy one. It is H-alpha Image (not RGB), Problem is, i don't know how to stack and process it in DSS or photoshop. I had done some stacking in photoshop using manual method. No dark frame or flats added.

Thanks.

cloud_cover · Post by **cloud_cover** » Mon Oct 01, 2012 6:14 pm

DSS is really click and go. Just load all your pics then click "stack checked pictures".
Since you haven't registered or checked them yet, a diaglouge box will appear to help you along.
I use exclusively DSS so far for stacking.
Have fun!

kimo · Post by **kimo** » Thu Oct 04, 2012 11:39 am

Thanks. Learning Maxim DL to process, Lets see how its looks! Actually must take more images. should i need any Flats and dark for this?

SingAstro

Testing lpr filter on Modded cam. M42

Testing lpr filter on Modded cam. M42

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Re: Testing lpr filter on Modded cam. M42-Halpha