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Rodenstock-Ysaron 90mm f/4.5
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PostPosted: Mon Jun 02, 2014 1:55 am    Post subject: Rodenstock-Ysaron 90mm f/4.5 Reply with quote

With an enlarging lens like this 90mm f/4.5 Rodenstock-Ysaron - who needs a Trioplan? Laughing Laughing
All shots wide open on the A7.

P.










PostPosted: Mon Jun 02, 2014 2:07 am    Post subject: Reply with quote

The second one is truly marvelous....

Maybe i should give some of my enlarger lenses a go....


PostPosted: Mon Jun 02, 2014 4:06 am    Post subject: Reply with quote

Nice photos. A Rodenstock Trinar should be better for bokeh photos.


PostPosted: Mon Jun 02, 2014 10:19 am    Post subject: Reply with quote

Mir wrote:
The second one is truly marvelous....

Maybe i should give some of my enlarger lenses a go....


Thanks for the compliment!

Absolutely give them a try - its lots of fun, the IQ is generally high, and it forces you to take a slightly different approach to your photography. Mounting is usually pretty straight forward, since many of these optics have standard M39 X 1 (LTM) screw mounts - just screw on an LTM -> M42 adapter ring Click here to see on Ebay
and then screw the lens into an M42 helicoid tube or M42 bellows designed for your camera and you are off and running.

Best,

P.


PostPosted: Mon Jun 02, 2014 10:20 am    Post subject: Reply with quote

calvin83 wrote:
Nice photos. A Rodenstock Trinar should be better for bokeh photos.



Thanks, Cal - I'll give one of those a shot!

Paul


PostPosted: Mon Jun 02, 2014 10:23 am    Post subject: Reply with quote

I like all of them.
Sharp with the beautiful bubble bokeh.
Great images and not as easy as you make them look.
Thank you.
OH


PostPosted: Mon Jun 02, 2014 12:53 pm    Post subject: Reply with quote

Those photo's are beautiful, great bokeh!


PostPosted: Mon Jun 02, 2014 12:58 pm    Post subject: Reply with quote

Intresting and nice photo!


PostPosted: Tue Jun 03, 2014 2:27 am    Post subject: Reply with quote

lovely pictures. I wonder what is difference this lens with Rogonar 90/4,5


PostPosted: Tue Jun 03, 2014 4:59 am    Post subject: Reply with quote

Lovely images! Experimenting with lenses is a great way to spend your free time! Wink


PostPosted: Tue Jun 03, 2014 5:55 am    Post subject: Reply with quote

the problem with enlarging lenses is that most of them only have a few blades. So if you need some DOF
and stop them down a little you get ugly bokeh.


PostPosted: Tue Jun 03, 2014 6:48 am    Post subject: Reply with quote

I have an older version of that lens knocking about in my darkroom, will have to dig it out and gaive it a go!, nice pictures by the way.


PostPosted: Tue Jun 03, 2014 7:13 am    Post subject: Reply with quote

hifisapi wrote:
the problem with enlarging lenses is that most of them only have a few blades. So if you need some DOF
and stop them down a little you get ugly bokeh.

Yes. Most modern enlargers are with few blades. The old ones does have lots of blades.


PostPosted: Tue Jun 03, 2014 10:09 am    Post subject: Reply with quote

calvin83 wrote:
hifisapi wrote:
the problem with enlarging lenses is that most of them only have a few blades. So if you need some DOF
and stop them down a little you get ugly bokeh.

Yes. Most modern enlargers are with few blades. The old ones does have lots of blades.

It has little to do with age. Enlarging lenses only have to deal with flat field, not 3-d subjects
so bokeh is not an issue and there is no need for multiple blades.


PostPosted: Tue Jun 03, 2014 12:21 pm    Post subject: Reply with quote

hifisapi wrote:
calvin83 wrote:
hifisapi wrote:
the problem with enlarging lenses is that most of them only have a few blades. So if you need some DOF
and stop them down a little you get ugly bokeh.

Yes. Most modern enlargers are with few blades. The old ones does have lots of blades.

It has little to do with age. Enlarging lenses only have to deal with flat field, not 3-d subjects
so bokeh is not an issue and there is no need for multiple blades.

The reason of having less blades is to reduce the manufacturing cost.


PostPosted: Tue Jun 03, 2014 3:33 pm    Post subject: Reply with quote

So who else checked out the Ebay prices on Ysarons after seeing the pics?


PostPosted: Tue Jun 03, 2014 10:08 pm    Post subject: Reply with quote

Thanks all.

It is definitely a good idea to shoot for older versions of enlarging lenses to get a high number of diaphragm blades. I have a cheap plastic Isco enlarging lens with a square (4 blades) aperture! I will have to shoot a few pics with that one just for the fun of it.

I did have little extra time the last few days, and blooms in the garden coincided with a string of nice weather, so it has been a the perfect opportunity for messing around with some goofball lenses!

Best,

Paul


PostPosted: Tue Jun 03, 2014 11:51 pm    Post subject: Reply with quote

By the way, if you are on the hunt for one of these, I think the Rodenstock Omegaron (branded for Omega enlargers) is the same lens!

Paul