I finished a project!

Telescope built around a Skywatcher 66 ED lens cell.

Neil

Very Impressive Neil.

Brian

Excellent work Neil.

Looking good

Impressed with your work Neil, nice job.

Emgee

I am sure that felt good. Well done.

J

Excellent work - will we be seeing the output on the Astro images?

Very nice job Neil.

Serious question, if I may.

Does all the bright white lettering in front of the lens make a measurable difference to image contrast/quality?

Impressive!

Nice work Neil,

Is, or are the lens' APO as the ring suggests?

Ed.

I'm sure some contrast-obsessives go over them in black sharpie. I would guess they are low down enough for virtually all the light to be reflected off the front of the lens and any left would hit the internal baffle.

More noticeable are the letters reflecting in the dew shield. This means a coat of heatproof black paint is needed over the anodising.

Neil

Not strictly, it's an ED doublet and no doublet can be truly apochromatic, but its performance is closer to a true Apo than an ordinary achromat - Skywatcher are bit cheeky, most scope builders call them 'semi achromatic'.

Neil

That's the plan all along!

I have a telephoto lens the same focal length that frames things well, but has too much chromatic aberration. This scope should be great for larger objects

Neil

That's very impressive work Neil

That looks a real pro job Neil, give that boy a gold star for the week...

George.

Looks great, I tried Astro photography with a telescope once, not very successfully. Ended up just shooting Lunar pics with a 300mm f4 and 1.4 tc as it was a lot easier.

What's the last post doing on here ?

Beautifully made Neil. I feel humble.

Adrian.

Nice one Neil, in the spirit of ME of old, although those guys ground there own mirrors.

Ian S C