UV/IR filter for CV 15mm

[parigby]

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I have just acquired the above lens ( non coupled variety ). Two dealers have told me that you cannot fit a UV/IR cut filter to the lens.

 

I have pointed them in the direction of threads here which seem to suggest that a 58mm (486) does fit, but they so no.

 

Can someone clarify just what the position is please.

 

Thanks in advance.

[Ecar]

If it's the old (non-coupled) version, you can either buy a Milich adapter/hood, which is designed for a standard 39mm screw filter - or use some kind of retaining device (some forum members, if I remember correctly, seem to have been very happy with a tightly-fitted rubber o-ring) to keep a filter in place without having to screw it in.

 

I got the Milich one, but it tends to create some vignetting. With hindsight, I'd probably go the DIY route.

 

There have been several threads a while ago on the subject. They should pop up through a forum search.

[Photon42]

The old 15mm can certainly be fitted with a 39 IR-Cut filter. There are numerous ways to do that. Do a search. I've just put some tape around the filter and jammed it into the lens hood. I've coded the 15mm as a 21mm, which worked quite will.

 

Rgds

Ivo

[junglehs]

Its easy to jam some tape around the filter and squeeze it in.

 

get the milich coded adapter. But code it as a wate. then you have the choice of focal length selection. 16 and 18 work the best.

 

Al

[mabelsound]

You can pretty easily add a 39mm filter ring made from a cheap filter by sanding down the male side and wedging it in there. It doesn't vignette on film when no filter is attached.

 

[mikki]

I tried a polarizer today and unfortunately, it vignettes way too heavy. My UV/IR works fine though.

[jaapv]

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Polarizer on a 15 mm? The poleffect will vary from 0% to 100% left to right.

[RobertW]

For the DIY in order of preference you can also try....

 

a rubber O ring that you can pick up from your local hardware/plumbing supplies store and put it around the IR CUT filter's threads and push the filter in. This has the advantage that you can easily remove if you're also shooting film.

 

The other is using some black silicon and squeezing some on the threads.....can be a bit messy unless you're a bit of a "handyman"

 

Or you can use some toothpicks (not the "expensive ones" they're a bit too hard, use the softer quality ones are better for this task:p) and with some finesse and a bit of artistry, squeeze 2 or 3 toothpick tips into the gap between the outside of the filter and inside of the lens threads. The quick & dirty approach.

 

Good Luck

[parigby]

Rob - what size filter would you use with your O ring solution ?

 

Thanks to everyone for their contributions.

[blimey]

my solution. i used a threaded tool to create a thread hole...

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[bocaburger]

Awesome, Blimey! I have to say I admire the technical precision of your setscrew method. I can attest from personal experience that tapping fine threads in soft metal takes some care. BTW I'm the guy who "invented" the method Mabelsound illustrated above (my article is on the LHSA website) of grinding the male threads from an empty filter mount and then epoxying it to the lens. The added bonus to any solid attachment like yours and mine is the ability to use a Leica 39mm snap front lens cap without fear of accidentally dislodging the filter.

[pico]

Perhaps someone smarter than I could find the origin of this filter adapter.

 

Flickr Photo Download: filteradapter_heliar15mm

[epand56]

Perhaps someone smarter than I could find the origin of this filter adapter.

 

Maybe a Milich? Looks like my Milich filter holder for the 12mm, just quite larger.

[blimey]

Awesome, Blimey! I have to say I admire the technical precision of your setscrew method. I can attest from personal experience that tapping fine threads in soft metal takes some care. BTW I'm the guy who "invented" the method Mabelsound illustrated above (my article is on the LHSA website) of grinding the male threads from an empty filter mount and then epoxying it to the lens. The added bonus to any solid attachment like yours and mine is the ability to use a Leica 39mm snap front lens cap without fear of accidentally dislodging the filter.

 

Awesome and thanks. The inspiration came from watching Iron Man 1 and 2

[mabelsound]

BTW I'm the guy who "invented" the method Mabelsound illustrated above (my article is on the LHSA website) of grinding the male threads from an empty filter mount and then epoxying it to the lens

 

Indeed, it was you I got the idea from, thanks again!

 

And agreed that Blimey's method is excellent.

[bocaburger]

Awesome and thanks. The inspiration came from watching Iron Man 1 and 2

 

I get my inspiration from re-runs of MacGyver

 

BTW, one little suggestion if I may...I would shorten the screw so that the filter is just retained snugly when the knob is flush with the lens-shade surface. That would prevent someone from being able to over-tighten it to where it could deform the filter's ring and possibly even crack the filter glass. I'm not implying you need to do that for yourself, but not everyone has a light touch.