Test new Optolong L-eNhance filter - Forums

Topic starter

Apr 7, 2019 · Edited: Apr 7, 2019

Test new Optolong L-eNhance filter
Single Shoot 900 sec
Telescop Quadruplet 70 mm f5
Camera Asi 071 gain 90
Scale Bortle 4.5

https://www.optolong.com/en/news/company-news

David

Apr 8, 2019

Hi,

thank you for sharing this first result.
It seems to be quite similar to the STC duo narrow band.
the stars are dimmed.
Ha is more visible, but it’s not obvious for OIII, maybe it will with several pictures integrated.
what about the coating of the filter, are they any halos around brighter stars ?

CS, David

Andrea Maggi

Topic starter

Apr 9, 2019 · Edited: Apr 9, 2019

Hi,

thank you for sharing this first result.
It seems to be quite similar to the STC duo narrow band.
the stars are dimmed.
Ha is more visible, but it’s not obvious for OIII, maybe it will with several pictures integrated.
what about the coating of the filter, are they any halos around brighter stars ?

CS, David

with more integration

is a Beta version of filter the engineers are working to eliminate halo around bright star

David

Apr 15, 2019

Hi Andreotto,

That’s a nice result/picture!
we can even see some OIII around the crescent nebulae.
and it seems that there is no halo around the stars, but they are not very bright.

have you tried the filter with other targets?

Engaging

David Goldstein

Apr 16, 2019

When is this filter expected to be available?

Andrea Maggi

Topic starter

Apr 18, 2019

David:
Hi Andreotto,

That’s a nice result/picture!
we can even see some OIII around the crescent nebulae.
and it seems that there is no halo around the stars, but they are not very bright.

have you tried the filter with other targets?

I'm doing other tests but the weather ...

Andrea Maggi

Topic starter

Apr 18, 2019

David Goldstein:
When is this filter expected to be available?

June