Forgot Password
Pentax Camera Forums Home
 

Reply
Show Printable Version Search this Thread
03-20-2009, 07:20 AM   #1
Pentaxian
fs999's Avatar

Join Date: Jul 2008
Location: Luxembourg
Photos: Gallery
Posts: 3,444
P645 Arsat 30mm f:3.5

I'm searching a fisheye lens for my 645N, and found this Arsat / Pentacon 6 / Kiev + P645 mount adapter.

The lens resolution is 60/14 lines per mm (center/edge). Is this good ?

Or is there an alternative lens ?



03-20-2009, 12:14 PM   #2
D W
Veteran Member




Join Date: Mar 2008
Location: Hogtown, ON, Canada
Posts: 329
This is suposed to be the Eastern Europe version of the 30mm Zeiss lens for the Hassy C series.
Just like all other Eastern Europe optics you are taking a chance as to the workmanship and optical assembly.

My copy was not bad but not great. I only use it over the Pentax A35mm when I needed the extra FOV and can stop down to f8-11.
However, the aperature broke and while in the shop my repairman (family friend over 40 years mention my copy was not as good as another that he repaired the aperature on. He then took apart the lens completely and reassembled it on his optics bench and the difference i night and day compare to before. However the Pentas A35mm still has an edge over it.
03-20-2009, 03:57 PM   #3
Pentaxian
fs999's Avatar

Join Date: Jul 2008
Location: Luxembourg
Photos: Gallery
Posts: 3,444
Original Poster
Thank you DW !

I am surprised that this lens has an angle of view of 180 and the 35mm only 90...

Sad that my 10-17 won't fit
03-20-2009, 06:26 PM   #4
D W
Veteran Member




Join Date: Mar 2008
Location: Hogtown, ON, Canada
Posts: 329
You have to careful with these angle of view.

The 30Arsat is the diagonal 180 degrees from corner to opposit corner. It is a fisheye design so at the same focal length you will get wider angle of view but you get curvatures along the edges. The 180 angle of view is for 6x6 Pentacon frame so when you adapt it to 645 you will lose some of this "view".

Reply

Bookmarks
  • Submit Thread to Facebook Facebook
  • Submit Thread to Twitter Twitter
  • Submit Thread to Digg Digg
Tags - Make this thread easier to find by adding keywords to it!
arsat, camera, lens, medium format, p645
Thread Tools Search this Thread
Search this Thread:

Advanced Search


Similar Threads
Thread Thread Starter Forum Replies Last Post
New p645 user from Poland pe645user Welcomes and Introductions 2 09-12-2010 12:16 PM
P645 Repairs Dubesor Pentax Medium Format 0 08-19-2010 02:43 PM
P645 Digi back akfreak Pentax Medium Format 7 07-22-2010 07:27 AM
Hartblei or Arsat T/S lens experiences - anyone? panoguy Pentax SLR Lens Discussion 7 11-04-2009 03:03 PM
New P645 / New Kitten / Delta 100 Nesster Post Your Photos! 2 09-05-2009 03:34 PM



All times are GMT -7. The time now is 01:27 AM. | See also: NikonForums.com, part of our network of photo forums!
  • Red (Default)
  • Green
  • Gray
  • Dark
  • Dark Yellow
  • Dark Blue
  • Old Red
  • Old Green
  • Old Gray
  • Dial-Up Style
Hello! It's great to see you back on the forum! Have you considered joining the community?
register
Creating a FREE ACCOUNT takes under a minute, removes ads, and lets you post! [Dismiss]
Top