Lots of Bahtinov masks

[Stefan Buda]

Over the last few years I designed many masks for telephoto lenses and refractors that were needed by various people. Every time I had a request for a mask, I printed an extra one or two in case I get a repeat request and so I ended up with a box full of masks. They range from 55 to 145 mm locating diameter. All are designed to locate on the inside diameter of the dew shield or lens hood, or filter thread.

If you have a need for a mask in this ball park, then send me your measurement and I'll let you know if I have one that fits.

The smaller ones you can have for $15 including postage, the larger ones are $25 including postage.

[multiweb]

PMd

[Bluknghtv]

I cant find one that will fit my 305mm
skywatcher quattro newt

[Stefan Buda]

Daniel,

If you can't source one over the next couple of months, contact me again and I may be able to help because by then I will have a CNC router that should be able to cut diameters of up to 310mm.

[eski]

pm'd

[Bluknghtv]

COOL thanks mate.

[jrm_astro]

Pm'd

Cheers

[Rickstargazer]

Hi Stefan, I have a skywatcher Evostar ED72, would you have a mask to suit? Thanks, Rick

[Stefan Buda]

Hi Richard,

I have a number of designs to fit various refractors from 60 to 127 aperture, but you need to measure the inner diameter of the dew shield so that I can pick something that will fit nicely.

[Rickstargazer]

The ID of the dew shield is 88mm

[Stefan Buda]

I have one of those, so if you PM me a delivery address I will send it off on Monday.

[Rickstargazer]

Hi Stefan,

That would be great, can you message me on 0411033363 with amount and bank details so I can deposit funds.
Will reply with address.

Thanks,
Rick.

[nickkantore]

Hello Stefan

Can you do one for Celestron 8inch SCT.

Let me know thanks

[Stefan Buda]

My printer limits the diameter to just below 6" but in a month or so my new CNC router should be ready and with that I will be able to go up to 310mm diameter.

[nickkantore]

Great thank you

[lodagoda]

I would also be looking at 9'25inch SCT.

[BlakPhoenix]

Adding to this that I'd be very keen for one for my SkyWatcher 190mm Mak-Newt once your new CNC is up and running.

[Stefan Buda]

Sold a few, many left.
Have not had the time to get the new CNC wired up yet.

[johnnyjetski]

PM sent

[Wussell]

Hello Stefan,

I am looking for a mask to suite a William Optics Zenithstar 70ed

Russell

[Stefan Buda]

Hi Russell,

Most likely I do have one but the problem is that I don't have a list of what size fits what scope, so I need a measurement of the ID where the mask plugs in. Even a measurement with a ruler should be good enough.

Stefan

[pmrid]

Hi Stefan,
I’ve just bought an 80mm BD ED80 and need a Bahtinov mask for it. The ID of the dew shield is 112mm. Would you have one to fit? Or be able to make one?

Peter

[lubbdub]

Hi Stefan, could I buy two masks please - 55mm and 77mm.

cheers

yash

[jayconnor]

could you make one for a 8" newt scope? i broke mine :(

[Bluknghtv]

you making 305mm yet, still after one for my 12 inch quattro newt

[Stefan Buda]

Sorry guys, the CNC project is on hold due to changed priorities since the pandemic.
Even when I finally get it going, it will not be practical to make large masks until I add a laser to it that can cut 1mm thick plastic sheets.

[Sunfish]

Just wanted to say thanks for my special order bathinov with the 2mm bars. I have been using this on my 100mm lenses and refractors for months and works on the DSLR and the astro cameras on any reasonable target. No need for the fishing line DIY model now. Did not realise what a perfect result I would be getting.

[Spidy]

Can you update us on whether you're still making these or not? Last post mentioned you were getting a laser?

[Vk6]

Thank you for the bespoke mask you made for me , fits and works perfectly 👍👍

[Stefan Buda]

Thanks Jake and Ray for the feedback.



Yes I still make them on request, up to 150mm diameter.

I got my CNC working a few days ago but I have not bought a laser yet.

Many years ago I started building a small CO2 laser that would be perfect for it but technology has evolved and these days a small fiber laser would be more practical. Have to see what's available. Maybe I can get away with a cheap diode laser.

[alval]

Thanks Stefan the mask arrived yesterday, the poor ox looked tired. The mask is really nice and fits like a glove. Way better than anything I could conjure up.
Al

[Spidy]

Damn. I need 234.95mm (9.25in.).