Finally...1st light, ES 127. M81/M82.

[MARS1960]

Well guys, after what feels like two years but only (only lol) two months of waiting for the clouds to break, my new ES 127 triplet finally got a look in.

The image is a combination of 8min and 6min subs (pesky moon) for a total intergration time of 2hrs 38mins before the mist came in.

Thanks for looking.

[michael.h.f.wilkinson]

Very nice first light result. Bit noisy perhaps, but some great detail captured.

[MARS1960]

Just now, michael.h.f.wilkinson said:

Very nice first light result. Bit noisy perhaps, but some great detail captured.

Thanks Michael, i tried lots of masking and denoising in PI but just couldn't get rid, i need more clear skies to get more images to practice on .

[gorann]

Looks good Mark!

Also nice to find another ES127apo user here on SGL - very happy with mine. Are you using a flattner or reducer? You stars in the corners are a bit elongated so I assume a flattner may be your next investment.

[MARS1960]

3 minutes ago, gorann said:

Looks good Mark!

Also nice to find another ES127apo user here on SGL - very happy with mine. Are you using a flattner or reducer? You stars in the corners are a bit elongated so I assume a flattner may be your next investment.

Thanks Goran.

I'm hoping to get a flattener/reducer soon, it would be good not only to get that flat field but a slightly reduced FL and increased FR would benefit the ES very well. Do you have a recommendation by any chance?

[gorann]

I use this 0.79 x reducer from TS. Works well both for my ES 127 and ES 80. You need a 10 mm T2 extension between the reducer and the Canon ring when you use it for the ES127 (16 mm when used with the ED 80).

http://www.teleskop-express.de/shop/product_info.php/info/p5965_TS-Optics-PHOTOLINE-2--0-79x-Reducer-4-element-for-Astrophotography.html

Here is a the extension you need:

http://www.teleskop-express.de/shop/product_info.php/info/p2260_TS-Optics-Optics-T2-extension---10mm-length.html

 

As flattner I use the one from ES:

https://www.explorescientific.co.uk/en/Optical-accessories/Explore-Scientific-MPCC-Field-Flatt-ED-APO-Canon-EOS-T2.html

[MARS1960]

1 minute ago, gorann said:

I use this 0.79 x reducer from TS. Works well both for my ES 127 and ES 80. You need a 10 mm T2 extension between the reducer and the Canon ring when you use it for the ES127 (16 mm when used with the ED 80).

http://www.teleskop-express.de/shop/product_info.php/info/p5965_TS-Optics-PHOTOLINE-2--0-79x-Reducer-4-element-for-Astrophotography.html

Here is a the extension you need:

http://www.teleskop-express.de/shop/product_info.php/info/p2260_TS-Optics-Optics-T2-extension---10mm-length.html

 

As flattner I use the one from ES:

https://www.explorescientific.co.uk/en/Optical-accessories/Explore-Scientific-MPCC-Field-Flatt-ED-APO-Canon-EOS-T2.html

Thanks Goran, shame there isn't a flattener/reducer combo, i think the reducer will be first on my list.

[gorann]

4 minutes ago, MARS1960 said:

Thanks Goran, shame there isn't a flattener/reducer combo, i think the reducer will be first on my list.

That is a good idea - reducing the FL and going from f/7.5 to f/5.9 makes AP easier.

[simmo39]

V nice.

[The Admiral]

5 hours ago, MARS1960 said:

Thanks Goran, shame there isn't a flattener/reducer combo, i think the reducer will be first on my list.

It does do both! It's called a "corrector/reducer". But you'll need to fine tune the sensor distance. The flattener just flattens but doesn't change the effective fl and is used on its own.

Ian

[gorann]

52 minutes ago, The Admiral said:

It does do both! It's called a "corrector/reducer". But you'll need to fine tune the sensor distance. The flattener just flattens but doesn't change the effective fl and is used on its own.

Ian

Maybe I was not clear, but the TS reducer I suggested is also a flattener (I thought most reducers also were flatteners). So, if yo get a reducer like that  it will also give you a flat field.

[MARS1960]

Understood thanks guys,  I did wonder why I would need a FF as well as a corrector/reducer, my last reducer for the ED100 was just a reducer and my Primaluce had a built in flattener.