Removing Glass from B+W filter...

[johnastovall]

I need a stand off ring for an IR-cut filter on a Canon 50/1.2. When I put the filter on it will touch the front element. It appears nobody makes a 55mm male to 55mm female adapter.

I'm go to get a B+W haze filter and remove the glass. What is the best way to remove the glass from the filter ring?

 

[paulhart]

I had to do this once in order to fit a glass to a Milich adapter for the Leica WATE.

If the glass is held in by a springy ring round the edge, you have to use a suitable tool to pull it away at one end and lift it - and then extract it - all without scratching the glass. Yes, I scratched the glass. It's not easy.

If it's held in by a threaded ring, you can buy a set of rubber lens ring tools from microtools. Google them and look up 'lens ring tools'.

 

[ruby.monkey]

Do you care about the glass being removed? Because if not, taping over it and hitting it with a hammer works pretty well. 🙂

 

[johnastovall]

Do you care about the glass being removed? Because if not, taping over it and hitting it with a hammer works pretty well. 🙂

Would prefer to save the glass....

 

[johnastovall]

I had to do this once in order to fit a glass to a Milich adapter for the Leica WATE.

If the glass is held in by a springy ring round the edge, you have to use a suitable tool to pull it away at one end and lift it - and then extract it - all without scratching the glass. Yes, I scratched the glass. It's not easy.

If it's held in by a threaded ring, you can buy a set of rubber lens ring tools from microtools. Google them and look up 'lens ring tools'.

That looks good... I wish it were a Leica filter with the retaining ring but not B+W and I'm mating it to a B+W bass filter so want brass to brass.

 

[Steve Litt]

I need a stand off ring for an IR-cut filter on a Canon 50/1.2. When I put the filter on it will touch the front element. It appears nobody makes a 55mm male to 55mm female adapter.

Have you tried SRB they sell off the peg and make to order.I am not sure if this is the kind of thing you are looking for?

http://www.srb-griturn.com/fixed-spacer-rings-161-p.asp

No affiliation with SRB just a customer in the past!

Regards
Steve

 

[nikon_sam]

Do you care about the glass being removed? Because if not, taping over it and hitting it with a hammer works pretty well. 🙂

Tape...tape...I always forget the tape...:bang:

 

[Nokton48]

I once needed a Hasselblad Stand-Off, so I wrapped the Zeiss filter in a paper towel, set it on the cement floor in the garage, and smacked it -once- with the rounded end of a ballpein hammer.

That was -fun-

 

[jenda1250]

indeed B+W filters have threaded retaining ring. Rubber ring from microtools should work well, hammer too (but be careful when removing first piece of glass). This construction is perfect if you plan to mount another glass inside because retaining ring can be tightened over different glass thickness.

I'm trying to make a gradual grey 39mm filter from BW KR3 (useless type for me and I just bought five of them...) and KOOD square plastic filter (cheap, neutral in colour, hopefully easy to cut). I plan to use it for landscapes with Skopar 25/4 or cron 50 when traveling light with Leica only.