Solar filter

[bottletopburly]

On my sw200 p there's a removable cap on the dust cap could I make a solar filter to go over this rather than make a full aperture filter?

[nightfisher]

Yes you can, but might be better with more aperture, you could make a card frame that would give maybe 4-6 inch of solar aperture

[bottletopburly]

Cheers in the process of making a full aperture filter just wondered

[Steve Ward]

To be honest you won't get any real benefit from the full 200mm unless you have a patch of exceptional seeing , been there tried that and can report that the atmosphere is the main limiting factor.

I'd make a filter that gives you as big an aperture that you can get between the spider vanes , about 75-80mm.

You get more filters from a sheet that way too .

[Bizibilder]

Agreed!

[bottletopburly]

Thanks

[LukeSkywatcher]

You dont need much aperture for solar viewing. The small hole in the cap should be more then enough. Just be sure the filter is stuck on extremely well.

[bottletopburly]

Thanks solar filter now made will try tomorrow

[Steve Ward]

Enjoy ...

Don't forget the sunshade , sun-cream and hat , if it's anything like today you run the risk of getting frazzled .... and if you can drag yourself out of the pit on a Sunday the best viewing is early on before the heat gets a chance to build up and wreck the seeing.

[bottletopburly]

Filter made works fine did take a while to find the sun though looked great my lad thought it looked cool

[Steve Ward]

Great to hear you're sorted , welcome to the gang ...