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  • Hey all, just changed over the backend after 15 years I figured time to give it a bit of an update, its probably gonna be a bit weird for most of you and i am sure there is a few bugs to work out but it should kinda work the same as before... hopefully :)

Bausch&Lomb CinemaScope Baltars.

Just saw "The bridge on the Riiver Kwai" on netflix yesturday. Apparently they are shot mostly on the Baltars with loose front ana elements and some on these housed anas that are comming my way. Sure that film had some oddities in the picture when panning and such but I did not feel that there where too many artefacts or strange Ana Mumps or such. On the contrary it looks quite smashing considering how long ago they shot that film and the tech they had at the time. So really looking forward to get these old babies. At the moment they are caught up in Swedish customs not sure for how long but must come trough soon hoping next week.
 
Got 1 out ot two today... they got stuck in customs so will take some time before I get the 75mm. But with the little time I had today I can only say that these things are built in a way I never seen before. I thought those focus wheels and such would be in poor conditions etc. but it´s moves butter smooth and just the feel of it all, it feels as if it´s built for nuclear war or something.

Did not have the right tools to remove the old mount but I free lensed it infront of helium with no mount on camera and it seams like it will very much fit in a pl / pl flange distance. if I remove the old mount. And now when the flange was slightly off this 50mm actually covered all the 8k FF sensor no problem. Possibly I get corners when the lens is moving in closer but it seems to have pretty darn good coverage.

Hope to have time tomorrow to take it to the lens doctor and see what we do with it. need to clean out some fungus on the second glas and stuff but except that it looks like it´s in good working order.
 

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Bjorn what 2 pieces do you have there for your evf mount?
 
Jacek Zakowicz said:
Amazing what a nice camera with nice sensor can do with these ;-)
Click to expand...

Agree, Helium really do wonders behind these.



Here is from the 75mm 8k ff helium. Imagine VV they would cover Beyond 2.66 on VV.

A016_C004_021132 by Björn Benckert, on Flickr

A016_C004_021132 by Björn Benckert, on Flickr

A016_C004_021132 by Björn Benckert, on Flickr


The 75mm got a face lift.

From this:

s-l1600 by Björn Benckert, on Flickr

To this:

16602673_10154568957183043_2669953620746516806_n by Björn Benckert, on Flickr


Trough this:

16684000_10154568956903043_5677080086696919150_n by Björn Benckert, on Flickr


Todays magic moment, when I managed to cut the first mount in half and realize that these will be super easy to remount for PL or even EF. And very possilbe to do both and have them swappable within minutes. Only need to make a custom tool and it litterary as easy as opening and closing a jar to swap mount. These old ones where done in soggy aluminium but I will make PL and EF in stainless hopfully next week if my mill guy is back from Thailand.

16640545_10154568956503043_2317492674872066989_n by Björn Benckert, on Flickr


Love these, imagine having all 6.

16508735_10154568957368043_941592399469130071_n by Björn Benckert, on Flickr
 
Anyone knows the name or even better the flange distance of this mount?
 

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Daniel John said:
I love this thread. Bjorn, your knowledge/ingenuity blows my mind. Please keep posting more images!
Click to expand...

I´m sorry but I know nothing about this stuff. I learn as I go. Realised now that when I hack saw of the mount of the 50mm I should have taped it up in a plastic bag or such as I now, when I did not do that, filled it up with aluminium sawdust. So next step is to dissemble that lens. Something that needed to be done sooner than later any how as it has some other dirt on the inside of the front element. Already took it some what appart but difficult to understand how I get the whole sliding front element of the slider it´s sitting on. One idea is to get a lens tool and loosen the glas and get in trough the front, but it seems like there should be an easier way, just have not figured out how yet. From looking inside these babies, its easy to see that they are built like nothing I ever seen before. The housing is thicker than most UV houses and it´s really done to last. Some old o-rings where dried out I think those where letting the dust in so will replace and clean them.


The dust gives a nice speckle to the image :)

IMG_3767 by Björn Benckert, on Flickr


IMG_3768 by Björn Benckert, on Flickr
 
Oh my God! Björn, that aluminum particles are real pain in the ass to clean away:-(

You are like me some years ago, I ruined a couple of heavy lomo zooms (they were so rusty and with water so very hard to dismantle, every ring was like glued) before I learned a skill :-)

In your case the hardest part would be to take out that huge glass pieces without damage and please believe me it IS hard! The risk of edge splitting are super high, 90%, man, you'd better NOT do it yourself!!!
If you still going your own way, better try to reach the glass surface from the back, do not try to take out the glass from the front.
 
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