boggyfresh

On 1/12/2019 at 1:49 AM, leslie said:

are you sure you haven't missed any little screws around the outside ?  i have heard of paint covering them over,  making disassembly  near impossible

After a 1 month battle... finally took it apart!

Leslie I did actually miss 2 small, real deep screws (heart0less pointed them out earlier in the thread). That helped separate the front focusing element from the 2 rear cylinders, which were still "welded" together so my problem wasn't quite solved yet.

Decided to throw that part into the freezer for 30 min. Meanwhile boiled about an inch of water in a pan (it's like I'm on a cooking show). Put the cold lens inside a Ziploc bag and sat into the water bath with the black rim facing down (this element needed to expand since the other is screwed into it). After that the rubber strap wrenches finished the job with barely any force needed. Great success??

On 12/30/2018 at 11:30 AM, leslie said:

if you tried the rubber wrenches the next step up is a couple of big adjustable pipe wrenches with some rubber wrapped around the isco to stop it getting marked. a vise can be handy too. you are undoing anti clockwise right ?  mine unscrewed anti clokwise anyway.

there doesn't seem to be much rhyme or reason, some parts undo pretty easy and then there will that one piece that will take a vise and pipe wrench to get apart.  there's no logic whatsoever.  i think bold had some luck heating his up in an oven to expand the metal then undid it but you would want to be careful doing that. you could try some wd-40 lubricant on it. just a dab mind you, capillary action will wick it into the threads a couple of dabs over 24 hours would help. i would just go with the vise and pipe wrench just becareful not to over tighten it and crush it

Leslie - really great tips thank you! So far it's Isco 3 - me 0. No dice on WD-40, rubber wrenches or vise and pipe wrench.... It's laughable at this point ???

I'm trying to unscrew it counter-clockwise because I was able to unscrew the small top piece (pictured on right) that way.

My next step will be trying to expand the metal with heat and then maybe lower the temperature of the front of the lens, but going to do so with a plastic zip-lock and hot water (the oven would worry me a little). Maybe this combined with WD-40 again would work.  Stay tuned for my findings.

On 8/16/2016 at 4:20 AM, Justin Bacle said:

I finally got my wrenches and was able to unscrew the anamorphic part !
A also got a clamp from RafCamera, which looks to do the job so far (I'll try to replace the tiny screws with ones I can unscrew w/o a tool)

I just finished shooting a short, so I'll try and shoot with the new adapter asap. So far, it looks sharper, but it vignettes very differently than my NAP35.

After about a week of searching, I came to a realization that this is the only site/thread offering substantial help on unscrewing the rear element off the ISCO anamorphic lens...

Unfortunately, the wrenches above did not work for me:( Any other suggestions would be IMMENSELY appreciated.