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Archive 2008 · Rokkor 58/1.2 EOS Howto Complete

  
 
cogitech
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p.13 #1 · Rokkor 58/1.2 EOS Howto Complete


Looks good to me


Aug 22, 2008 at 10:30 AM
ulrikft
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p.13 #2 · Rokkor 58/1.2 EOS Howto Complete


I have tested it some more today and it seems very good and sharp


Aug 22, 2008 at 10:35 AM
ulrikft
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p.13 #3 · Rokkor 58/1.2 EOS Howto Complete


Have anyone tested the 50 1.2 btw?

Nevermind, did a quick search, hard conversion! nevermind me

Edited on Aug 22, 2008 at 08:59 PM



Aug 22, 2008 at 08:58 PM
Jman13
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p.13 #4 · Rokkor 58/1.2 EOS Howto Complete


From all reports, if you can get a conversion for the 50 f/1.2, it's a slightly sharper lens, though the bokeh isn't quite as nice.


Aug 23, 2008 at 10:40 AM
tmessenger
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p.13 #5 · Rokkor 58/1.2 EOS Howto Complete


I converted a minolta 50/1.2 it's very easy to convert. see: https://www.fredmiranda.com/forum/topic/676373/0#6047767

Tim



ulrikft wrote:
Have anyone tested the 50 1.2 btw?

Nevermind, did a quick search, hard conversion! nevermind me



Edited on Aug 23, 2008 at 04:34 PM



Aug 23, 2008 at 04:33 PM
ulrikft
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p.13 #6 · Rokkor 58/1.2 EOS Howto Complete


Just wanted to show what this thing is capable of wide open!
Both 100% crops


Not too bad?


This is at 2.8:




This is at 1.2:




Aug 27, 2008 at 12:25 PM
cogitech
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p.13 #7 · Rokkor 58/1.2 EOS Howto Complete


ulrikft,

If you don't mind, could you please post or PM me with the first three digits of the serial number of your lens?



Aug 27, 2008 at 12:27 PM
ovredal73
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p.13 #8 · Rokkor 58/1.2 EOS Howto Complete


Wow, think that might be sharper than mine Can hardly see the difference between 1.2 and 2.8. Test it on high contrast scenes though, for ghosting etc. Would love to see some samples. Do you have the metal or rubber grip edition?

By the way Ulrik, do you live in the high apartment buildings right next to Sandakersenteret? Seems about right from the shots of Oslo downtown further up in the thread.



Aug 27, 2008 at 01:57 PM
cogitech
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p.13 #9 · Rokkor 58/1.2 EOS Howto Complete


Andre,

Hopefully without stepping on toes, his version is (maybe surprisingly) one of the newest (rubber).




Aug 27, 2008 at 02:07 PM
Jman13
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p.13 #10 · Rokkor 58/1.2 EOS Howto Complete


Mine's pretty sharp too. Here's a 100% crop from mine at 1.2: Mine's a Rokkor-X PG (rubber)

http://www.jordansteele.com/forumlinks/rokkor_post_crop.jpg



Aug 27, 2008 at 02:12 PM
Paul Yi
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p.13 #11 · Rokkor 58/1.2 EOS Howto Complete


I've had two Rokkors, one with metal focus ring and the other one with a rubber one... and the sharper one was the rubber one.
The serial number started with 276...



Aug 27, 2008 at 05:33 PM
cogitech
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p.13 #12 · Rokkor 58/1.2 EOS Howto Complete


Paul Yi wrote:
I've had two Rokkors, one with metal focus ring and the other one with a rubber one... and the sharper one was the rubber one.
The serial number started with 276...


Well, for the sake of full disclosure:

I've shot 11 Rokkor 58/1.2s and the sharpest (unmatched by any of the others) is an old, banged up, radioactive version with serial number starting with 200.

All the rest were only excellent.

I have never seen another 200xxxx copy.

Edited on Aug 27, 2008 at 06:32 PM



Aug 27, 2008 at 06:30 PM
Jman13
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p.13 #13 · Rokkor 58/1.2 EOS Howto Complete


There was one for sale on eBay a few days ago....


Aug 27, 2008 at 07:24 PM
convert
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p.13 #14 · Rokkor 58/1.2 EOS Howto Complete


Cogitech wrote:
I've shot 11 Rokkor 58/1.2s and the sharpest (unmatched by any of the others) is an old, banged up, radioactive version with serial number starting with 200.
All the rest were only excellent.


I use 3 Rokkor 1,2/58 (one radioactive version with SN 250xxxx, metal focus ring with SN 255xxxx and the last with SN 256xxxx).
The sharper one is with radioactive version, but my "Geigerzähler" tells me that the gamma radiation 10 times more than the other one (measuring time was 28 second).
I don't know what kind of influence to my eyes.



Aug 27, 2008 at 09:30 PM
ulrikft
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p.13 #15 · Rokkor 58/1.2 EOS Howto Complete


Shooting sport with the rokkor





Aug 28, 2008 at 09:19 AM
ulrikft
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p.13 #16 · Rokkor 58/1.2 EOS Howto Complete


ovredal73 wrote:
Wow, think that might be sharper than mine Can hardly see the difference between 1.2 and 2.8. Test it on high contrast scenes though, for ghosting etc. Would love to see some samples. Do you have the metal or rubber grip edition?

By the way Ulrik, do you live in the high apartment buildings right next to Sandakersenteret? Seems about right from the shots of Oslo downtown further up in the thread.


Hey!

I love the sharpness alright

I'll put it trough some rigorous testing the next few weeks!

I live in the tall appartment building (12 floors) at bjølsen, just by the Ica Maxi (student appartments)! Great view for sunset and sunrises



Aug 28, 2008 at 09:21 AM
BKue
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p.13 #17 · Rokkor 58/1.2 EOS Howto Complete


cogitech wrote:
I've shot 11 Rokkor 58/1.2s and the sharpest (unmatched by any of the others) is an old, banged up, radioactive version with serial number starting with 200.

All the rest were only excellent.

I have never seen another 200xxxx copy.


I have a 200xxxx copy. How can one know it is radioactive? My copy shows not the slightest sign of yellowing. Alas, the former owner informed me that he had not used the lens since he owned it, but stored it behind glass, so it was somewhat exposed to light for years.

BKue



Aug 28, 2008 at 02:15 PM
cogitech
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p.13 #18 · Rokkor 58/1.2 EOS Howto Complete


BKue wrote:
I have a 200xxxx copy. How can one know it is radioactive? My copy shows not the slightest sign of yellowing. Alas, the former owner informed me that he had not used the lens since he owned it, but stored it behind glass, so it was somewhat exposed to light for years.

BKue


The only way to tell, if there is no yellowing/browning, is with a geiger-counter, AFAIK.



Aug 28, 2008 at 02:17 PM
Cableaddict
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p.13 #19 · Rokkor 58/1.2 EOS Howto Complete


I started a thread a few weeks ago, hoping to get folsk to list their serial numbers for known thorium lenses.

Not a single person posted a number.

Sigh.

I then bought a used geiger counter off Fleabay, but it turned out to be defective.

I'm done caring. Fuggit, just gonna take pics now.....



Aug 28, 2008 at 10:18 PM
ulrikft
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p.13 #20 · Rokkor 58/1.2 EOS Howto Complete


I just thought to test the Rokkor at f/1.2 versus f/8.0, there IS a difference, but I don't think that 1.2 is all that bad, again

1.2:


8.0:



I'll stop boring you with stupid pictures soon :P

A more interesting photo (maybe) :









Aug 29, 2008 at 07:49 PM
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