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First light for my new ASKAR Fra 500 F/5.6 quintuplet


Lucas_M

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That is a great scope. Excellent optics and mechanics. Also beautiful.
The stars are pinpoint corner to corner.
I´m very happy with that new rig.
Soon i will bring more details. For while, an image can say a lot by it self. No cropped edges.


ASKAR FRA 500 F/5.6 quintuplet + ASI1600mm
L 20x60s + RGB 10x60s (each filter)

Urban sky Borttle 8

Messier 7
image.thumb.png.f87e34969971a40ad99b6cd4b50c4427.png

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  • 2 months later...
On 08/06/2022 at 20:09, Lucas_M said:

That is a great scope. Excellent optics and mechanics. Also beautiful.
The stars are pinpoint corner to corner.
I´m very happy with that new rig.
Soon i will bring more details. For while, an image can say a lot by it self. No cropped edges.


ASKAR FRA 500 F/5.6 quintuplet + ASI1600mm
L 20x60s + RGB 10x60s (each filter)

Urban sky Borttle 8

Messier 7
image.thumb.png.f87e34969971a40ad99b6cd4b50c4427.png

Hey Lucas, did you have chance to shot other objects? I want to buy FRA500 and very interesting in real examples.

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  • 2 weeks later...
On 16/08/2022 at 17:05, Astro_Highlander said:

Hey Lucas, did you have chance to shot other objects? I want to buy FRA500 and very interesting in real examples.

Hi friend.

Yes, i did. I got some more shots but had no time for processing yet. So i will share single frames, only stretched.

First image in native focal ratio f5.6 i see perfect stars corner to corner, even with a APS-C sensor size (i would like to try a full frame sensor, but haven´t one).

Second one was taken with the f/3.9 reducer. With a small sensor (as the ASI1600) we can see not perfect corrected stars in the corners. I have no reason to complain about that because my last apocromatic triplet refractor had worse correction, even in native focal ratio with a good flattener.

image.thumb.png.265ea51aebfafd9f505f72bbaa8ad114.png

image.thumb.png.9ae5d4d44bfbbab7d7aa5ae811e2a8c6.png


 

 

 

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