Support our Sponsors, they keep FADU free:   AG Photographic   The Imaging Warehouse   Process Supplies   RH Designs   Second-hand Darkroom Supplies  

Notices

Go Back   Film and Darkroom User > Equipment > Filters

  ***   Click here for the FADU 2015/2014 Yearbooks   ***

Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 18th November 2021, 11:16 AM
Nat Polton Nat Polton is offline
Friend
 
Join Date: Oct 2019
Posts: 758
Default Hasselblad Softar Filter.

I recently picked up a Hasselblad Softar Filter quite cheaply. I do not have a Hasselblad, but intend to use it under the enlarger lens.

It does not feel cold when touched, so I am wondering if it is some sort of resin plastic.
Can anyone tell me if it is glass, and if it is plastic what cleaning fluid would be suitable?

The reason why I ask is, I remember years ago using 100% iso-propyl alcohol on a special effects filter that was given away with a magazine.
It melted the surface and became a cloudy, coloured disc.
I didn't realise it was plastic at the time.

Cheers.
__________________
It will all be over by Christmas.
Reply With Quote
  #2  
Old 18th November 2021, 11:36 AM
Collas Collas is offline
Friend
 
Join Date: Dec 2010
Posts: 971
Default

B+W still make them after taking over the licence from Carl Zeiss. The B+W filters are made of glass.

They make an extensive range of cleaning products! I've used the Lens Cleaner Pump Spray in the past on plastic spectacle lenses and glass filters and it does a good job. I've also used Zeiss cleaning fluid and Lee Filters Clear Lee and they all seem to work very well.

https://schneiderkreuznach.com/en/ph...ning-transport
Reply With Quote
  #3  
Old 19th November 2021, 07:13 PM
Nat Polton Nat Polton is offline
Friend
 
Join Date: Oct 2019
Posts: 758
Default

Thank you Collas.
I shall happily clean it knowing it is glass.
Cheers.
__________________
It will all be over by Christmas.
Reply With Quote
  #4  
Old 19th November 2021, 07:33 PM
billcowan's Avatar
billcowan billcowan is offline
Friend
 
Join Date: Mar 2011
Posts: 82
Default

No, No! The new B&W are advertised as glass, but the old Hasselblads are, at least some, if not all, are Optical resin.
__________________
www.eleventyoneportraits.com
Reply With Quote
  #5  
Old 19th November 2021, 11:40 PM
Nat Polton Nat Polton is offline
Friend
 
Join Date: Oct 2019
Posts: 758
Default

Thankyou Bill.
You caught me just in time.

I think I shall get the filter out of its frame tomorrow and have a proper look to see if it is resin or glass.
A jab with a needle on the outer edge will prove for sure if it is glass or resin.

Thank you Bill.

Cheers.
__________________
It will all be over by Christmas.
Reply With Quote
  #6  
Old 20th November 2021, 03:09 AM
billcowan's Avatar
billcowan billcowan is offline
Friend
 
Join Date: Mar 2011
Posts: 82
Default

Happy face.
I have one which has the most remarkable circular cleaning marks which has made a No. 1 filter in to a No. 3+ filter. very dramatic and still good for a perfectly fine soft focus effect; just more than what was intended.
__________________
www.eleventyoneportraits.com
Reply With Quote
  #7  
Old 21st November 2021, 02:01 PM
Nat Polton Nat Polton is offline
Friend
 
Join Date: Oct 2019
Posts: 758
Default

Thank you to both Collas and Bill.

My filter has printed on it "Hasselblad. Carl Zeiss Softar II Lens-Germany."

I could not undo the thread to get the filter out of the frame, it is rock solid and I didn't fancy a slip with the tool and a possible scratch.

So I took a sharp needle and lightly pressed it into the filter at the very edge of the frame.
The needle proved it is some sort of plastic.

My go to lens cleaning solution is Baader Optics Lens Cleaning Fluid.
All worked fine. Nice and clean now.

Although I have used a few resin filters and had no complaints about them,I tend to look on them as slightly inferior to glass. Rightly or wrongly.
It surprises me that Hasselblad would use plastic filters.


Thanks again.


Cheers.
__________________
It will all be over by Christmas.
Reply With Quote
  #8  
Old 21st November 2021, 02:26 PM
billcowan's Avatar
billcowan billcowan is offline
Friend
 
Join Date: Mar 2011
Posts: 82
Default

I expect the problem with using glass was getting the lenslets all oriented and spaced, whereas casting plastic allowed that sort of design. I must say I am still a bit skeptical that the new B&W filters are actually glass (despite the advertising) or that they are composed of lenslets, Still never say never.
__________________
www.eleventyoneportraits.com
Reply With Quote
Reply
Support our Sponsors, they keep FADU free:   AG Photographic   The Imaging Warehouse   Process Supplies   RH Designs   Second-hand Darkroom Supplies  

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Carl zeiss softar 1 filter paddy Filters 10 20th April 2020 05:23 PM
Focussing Hasselblad JOReynolds Cameras - medium format 3 19th July 2016 11:40 AM
Hasselblad Cameras DeonReynolds Cameras - medium format 2 7th December 2015 11:22 PM
is hasselblad top banana big paul Cameras - medium format 8 22nd July 2013 04:47 PM
For sale: Hasselblad: Zeiss Distagon 60mm F3.5 + 1xHZ 0 filter wojtek Sale or Wanted 0 26th March 2010 09:18 AM


All times are GMT. The time now is 03:42 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.