Solar Filter

[banjaxed]

I was thinking about using baader solar filter film for my SW 200P dob and wondered if I use the small cover on the end cap, could it just be taped on to the inside of the cover ? Not having any experience with Solar viewing I don't want to make any silly mistakes.

[RT65CB-SWL]

That's what most do, from reading various posts. Just make sure it is super strong adhesive tape, like duct-tape and check before each and every use for defects, i.e. pinholes, tears, etc.

Don't forget to make a filter for the finderscope to, or leave the end caps on. 

[banjaxed]

Thanks Phillip,

The Baader filter is quoted as being A4 size so it should make a few filters if I'm not sure if there are any defects.

[joe aguiar]

I use hot glue when I make my filters

joejaguar 

[RT65CB-SWL]

17 minutes ago, joe aguiar said:

I use hot glue when I make my filters

joejaguar 

Every time I have used 'hot glue' to make mine, it did not stick!  

[banjaxed]

11 minutes ago, Philip R said:

Every time I have used 'hot glue' to make mine, it did not stick!  

I think I will STICK to using duct tape  😀

[JOC]

You might find this thread useful - my 200P DIY solar filter and lots of ideas from others in the pictures too:

 

 

[bingevader]

Here's mine, fits over the outside of the small hole.

A nice snug fit and then you can tape it on too, just to be sure.

I tape the end cap on too!

Edited February 10, 2020 by bingevader

[joe aguiar]

9 hours ago, Philip R said:

Every time I have used 'hot glue' to make mine, it did not stick!  

Maybe diffetent kinda o

I never had an issue I used mine since like 98

Joejaguar 

[IB20]

I have just fashioned up this for my 200p. It’s very scruffy but I’ll say it’s a prototype. Found it quite hard to keep the film completely flat but it worked and I got to see a complete white cue ball! ⚪️ The film flexes through air pressure when the lid and dust cap are taken on and off the scope so I’ll be extremely careful to triple check before each use. Doing this method means I have plenty of AstroSolar film from 1 x A4 sheet for replacing the filter however. 

Really don’t think you’d ever need the full aperture on this scope. 
 

Also the white mask is incredibly important as the lid will heat up extremely quickly without it!

[Davey-T]

Good job, should be fine a few wrinkles won't affect it.

Dave

[John]

Looks a good job. The Baader film is designed to work fine with the ripples in it. It should not be tight across the apertures.

 

[FMA]

30 minutes of fun with kids....