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Rokkor-QF 40mm f1.8
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PostPosted: Tue Jan 31, 2017 12:52 am    Post subject: Rokkor-QF 40mm f1.8 Reply with quote
Hi,
is there in your opinion a way to adapt this lens to the Fuji X mount? What kind of mount this lens comes with exactly?

Thanks in advance.


PostPosted: Tue Jan 31, 2017 1:08 am    Post subject: Re: Rokkor-QF 40mm f1.8 Reply with quote
wolan wrote:
Hi,
is there in your opinion a way to adapt this lens to the Fuji X mount? What kind of mount this lens comes with exactly?

Thanks in advance.


Looks like the same lens as from the Minolta rangefinder camera mentioned in the link below.
It will not have a mount and will have to have one attached somehow after its removal from the rangefinder camera.
Here is the link:
http://oldlenses.blogspot.com.au/2016/05/minolta-rokkor-qf-40mm-f18-from.html
T


PostPosted: Tue Jan 31, 2017 1:31 am    Post subject: Reply with quote
What is the incentive to doing this? Any benefit over the Rokkor 2/45 or the Hexanon 1.8/40?


PostPosted: Tue Jan 31, 2017 2:35 am    Post subject: Reply with quote
woodrim wrote:
What is the incentive to doing this? Any benefit over the Rokkor 2/45 or the Hexanon 1.8/40?

It would be an interesting project for sure if you already have the lens, but it looks like a lot of work to get functional.
The Hexanon 1.8/40 is excellent and can often be found quite cheaply.
Good luck with it
T


PostPosted: Tue Jan 31, 2017 6:22 am    Post subject: Reply with quote
These are fun projects!
For one because they are compact and second (most important) because they do render different from SLR lenses. About every SLR lens that one can think of has been used on a digital camera, there are plenty of samples, but not so with old fixed lenses from rangefinders. Some are known to be really good!
I've done one fixed lens to E-mount conversion so far by experiment, but by now i have gathered some defunct Minolta rangefinders which i plan to dismantle for their lens.

Here's my Canonet experiment: http://forum.mflenses.com/canon-40mm-f-2-8-rf-lens-t73332,highlight,%2Bcanon.html


PostPosted: Tue Jan 31, 2017 7:02 am    Post subject: Reply with quote
TrueLoveOne wrote:
These are fun projects!
For one because they are compact and second (most important) because they do render different from SLR lenses. About every SLR lens that one can think of has been used on a digital camera, there are plenty of samples, but not so with old fixed lenses from rangefinders. Some are known to be really good!
I've done one fixed lens to E-mount conversion so far by experiment, but by now i have gathered some defunct Minolta rangefinders which i plan to dismantle for their lens.

Here's my Canonet experiment: http://forum.mflenses.com/canon-40mm-f-2-8-rf-lens-t73332,highlight,%2Bcanon.html


Those results from the Canonet are wonderful.
How did the next project - a lens from a Minolta Hi-Matic 7S go?
Cheers
T


PostPosted: Tue Jan 31, 2017 8:34 am    Post subject: Reply with quote
Oldhand wrote:

Those results from the Canonet are wonderful.
How did the next project - a lens from a Minolta Hi-Matic 7S go?
Cheers


Thank you!

Nothing yet, unfortunately. Since then we have moved to another town, which was a lot of work (still is, it's an old farm) and in the meantime i developed some problems with my right arm. First surgery was done in september, second and heaviest is due in march.... after that i won't be able to do much for several weeks....so it'll have to wait for better times!


PostPosted: Tue Jan 31, 2017 9:01 am    Post subject: Reply with quote
TrueLoveOne wrote:
Oldhand wrote:

Those results from the Canonet are wonderful.
How did the next project - a lens from a Minolta Hi-Matic 7S go?
Cheers


Thank you!

Nothing yet, unfortunately. Since then we have moved to another town, which was a lot of work (still is, it's an old farm) and in the meantime i developed some problems with my right arm. First surgery was done in september, second and heaviest is due in march.... after that i won't be able to do much for several weeks....so it'll have to wait for better times!


Home and family comes first - no exceptions.
I fully understand.
When you can find the time to get back to your hobby, I will be interested to see how it unfolds
Hope your arm is better soon
T


PostPosted: Tue Jan 31, 2017 9:59 am    Post subject: Reply with quote
woodrim wrote:
What is the incentive to doing this? Any benefit over the Rokkor 2/45 or the Hexanon 1.8/40?


Does the 40mm f2 render as the f1.8:
https://www.flickr.com/photos/lensbubbles/sets/72157668251688002/

I think the f1.8 has something special.


PostPosted: Tue Jan 31, 2017 10:09 am    Post subject: Reply with quote
wolan wrote:
woodrim wrote:
What is the incentive to doing this? Any benefit over the Rokkor 2/45 or the Hexanon 1.8/40?


Does the 40mm f2 render as the f1.8:
https://www.flickr.com/photos/lensbubbles/sets/72157668251688002/

I think the f1.8 has something special.


Interesting question.
I have never shot the Hexanon 1.8/40 at widest aperture - at least I cannot remember doing so.
Here is one of my images from it however
T


#1


PostPosted: Tue Jan 31, 2017 4:00 pm    Post subject: Reply with quote
I've done quite a few of these fixed rangefinder lens conversions for Sony e-mount now and I think the best advantages are that these old cameras can still be had for pretty cheap (especially broken ones) and the resulting lens after adaption is quite compact with really good image quality.

Here's a converted 40mm Rokkor 1.7



The lenses are super easy to work on/take apart and clean...and bonus if the camera is broken (a lot of them are) you'd be saving it from the junk heap.

--mike


PostPosted: Tue Jan 31, 2017 4:44 pm    Post subject: Reply with quote
woodrim wrote:
What is the incentive to doing this? Any benefit over the Rokkor 2/45?


The 40/1.8 and 1.7 from the Hi-Matics have a very good reputation on film. I've never seen anyone particularly impressed with the 45/2 besides its size, and test images against the other Rokkor standard lenses confirms this. Apparently it's quite 'plastic' compared to the other Rokkors, too, so I never ended up buying one. It was the budget standard lens of the day and I suppose the 50/2 has a much better reputation comparing it to Leica.


PostPosted: Tue Jan 31, 2017 5:28 pm    Post subject: Reply with quote
Teemō wrote:
I've never seen anyone particularly impressed with the 45/2 besides its size, and test images against the other Rokkor standard lenses confirms this. Apparently it's quite 'plastic' compared to the other Rokkors, too, so I never ended up buying one. It was the budget standard lens of the day and I suppose the 50/2 has a much better reputation comparing it to Leica.


I am indeed impressed by the performance of my Rokkor 45/2 and I don't believe that the 50/2 is really the better lens (I own it as well).
Watch this: http://forum.mflenses.com/minolta-md-rokkor-45mm-f2-t73268,highlight,%2Bminolta.html


PostPosted: Tue Jan 31, 2017 5:45 pm    Post subject: Reply with quote
Oldhand wrote:

When you can find the time to get back to your hobby, I will be interested to see how it unfolds
Hope your arm is better soon
T


Thank you! Of course, when i have samples i'll post them!

Here are 2 pictures made with the 50mm f/2.0, it is a sharp lens!
1.
Minolta MD 2/50 by René Maly, on Flickr

2.
Minolta MD 2/50 by René Maly, on Flickr


PostPosted: Wed Feb 01, 2017 4:11 am    Post subject: Reply with quote
tb_a wrote:
Teemō wrote:
I've never seen anyone particularly impressed with the 45/2 besides its size, and test images against the other Rokkor standard lenses confirms this. Apparently it's quite 'plastic' compared to the other Rokkors, too, so I never ended up buying one. It was the budget standard lens of the day and I suppose the 50/2 has a much better reputation comparing it to Leica.


I am indeed impressed by the performance of my Rokkor 45/2 and I don't believe that the 50/2 is really the better lens (I own it as well).
Watch this: http://forum.mflenses.com/minolta-md-rokkor-45mm-f2-t73268,highlight,%2Bminolta.html


There is probably no significant difference in the midframe as they were both budget lenses and share a 6/5 construction but it's the first lens I can say where the images just don't seem to have an appealing character to me. Interestingly, the 50mm can focus closer and seems to be cheaper. I am a bit biased anyway since I only buy and use MC lenses - my mainhand was a 58/1.4 but ever since I got a 35/1.8, I haven't really used the 58. I guess I don't see the point to carry around a big, heavy SLR with a pancake lens like the 45, either - better to take the Hi-Matic.


PostPosted: Wed Feb 01, 2017 6:17 am    Post subject: Reply with quote
The hardest part is finding a combination of parts that you can mount the lens to, searching Google for blogs and forum threads that show the process would help measurably, plus you can see the finished product before you dig in.
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