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€70 500mm reflex test.

Iancar29 · 2016-01-25 15:58:36

Taken back on the 16th heres a test with a super cheap 2nd hand 500mm f8 reflex lens i picked up for €70 M42 Orion D7000 20x60s at ISO 500. iOptron Skytracker Messed up the darks unfortunately so not as smooth as could have been with them added in. Flame Nebula same exposure time but at ISO 3200. The lens focus at infinity…

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25-01-2016 4:58pm

#1

Iancar29

Registered Users Posts: 5,068 ✭✭✭

Join Date: January 2009

Posts: 4818

Taken back on the 16th heres a test with a super cheap 2nd hand 500mm f8 reflex lens i picked up for €70

M42 Orion

D7000
20x60s at ISO 500.
iOptron Skytracker
Messed up the darks unfortunately so not as smooth as could have been with them added in.

Flame Nebula same exposure time but at ISO 3200.

The lens focus at infinity isn't great at all but for €70 im very happy with the results.

5

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#2 26-01-2016 7:11pm
allinthehead

Registered Users Posts: 2,116 ✭✭✭

Join Date: October 2012

Posts: 2056

Nice one that's a great result. You have me thinking now i've a 70-300mm f5 sigma lens should be worth a try.

☀️

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