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Lyman-Alpha II Experimental f1.1/90mm mirror lens
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PostPosted: Sun Oct 21, 2018 8:28 am    Post subject: Lyman-Alpha II Experimental f1.1/90mm mirror lens Reply with quote
Found those lenses sold after a US company was dissolved after the owner and inventor deceased.

This one is a rather special f1.1/90mm catoptric mirror lens (i.e. no glass involved, only mirrors).

I had written about that before here: http://forum.mflenses.com/lyman-alpha-f1-1-90mm-catoptric-lens-t47139,highlight,%2Blyman.html

Now some first results after proper (infinity reaching) conversion on my Panasonic GH4, images selected for the special bokeh it has...


#1


#2


#3


#4


Full set is here: https://www.flickr.com/photos/kds315/albums/72157702692038345

Here about its sister lens, the LYMAN-ALPHA I 2.8/200mm:
http://forum.mflenses.com/lyman-alpha-i-experimental-f2-8-200mm-mirror-lens-t79888.html

Last edited by kds315* on Tue Oct 23, 2018 6:53 pm; edited 3 times in total


PostPosted: Sun Oct 21, 2018 10:06 am    Post subject: Reply with quote
Some wild effects going on there! This might explain why they don't make fast mirror lenses Smile


PostPosted: Sun Oct 21, 2018 10:32 am    Post subject: Reply with quote
blotafton wrote:
Some wild effects going on there! This might explain why they don't make fast mirror lenses Smile


It was forced to be used on a sensor it was not designed for; this was made once for a 15mm amplification tube. Wink


PostPosted: Sun Oct 21, 2018 10:48 am    Post subject: Reply with quote
Looks pretty trippy, in a good way.

Thanks for sharing your experiment!


PostPosted: Sun Oct 21, 2018 12:46 pm    Post subject: Reply with quote
original effect

Like 1 Like 1 Like 1


PostPosted: Mon Oct 22, 2018 7:57 am    Post subject: Reply with quote
And here about that rather unusual bokeh...





(last is when OOF, bit psychedelic...)


PostPosted: Mon Oct 22, 2018 8:00 am    Post subject: Reply with quote
Speed boat on Rhine river...





PostPosted: Mon Oct 22, 2018 9:11 am    Post subject: Reply with quote
As someone mentioned above - trippy. There's a lot going on in the images, but I like it though.


PostPosted: Mon Oct 22, 2018 9:51 am    Post subject: Reply with quote
Nice find, Klaus. I love the effect, it's like having a twisted brush to paint your images with...

Cheers!

Abbazz


PostPosted: Mon Oct 22, 2018 10:04 am    Post subject: Reply with quote
Thanks guys! Ideed, quite unique this is "out of camera", never seen anything like that photoshopped... Wink


PostPosted: Mon Oct 22, 2018 7:06 pm    Post subject: Reply with quote
Magic lens Like 1 small


PostPosted: Mon Oct 22, 2018 7:42 pm    Post subject: Reply with quote
Last one is favorite. Is this "busy" bokeh, or what? A lens not easily learned!


PostPosted: Mon Oct 22, 2018 10:00 pm    Post subject: Reply with quote
Klaus, the original thread lost images (likely due to the server crash a couple of years ago) any chance to see photos of the lenses themselves?


PostPosted: Tue Oct 23, 2018 5:41 am    Post subject: Reply with quote
jamaeolus wrote:
Klaus, the original thread lost images (likely due to the server crash a couple of years ago) any chance to see photos of the lenses themselves?


I had checked before and have again just now, all pictures are still there... (they are hosted by me, not local)Wink


PostPosted: Fri Oct 26, 2018 3:03 pm    Post subject: Reply with quote
Some images in reflected UV (300-400nm) taken with it:





PostPosted: Fri Oct 26, 2018 5:10 pm    Post subject: Reply with quote
Your UV shots are always amazing !


PostPosted: Fri Oct 26, 2018 10:52 pm    Post subject: Reply with quote
Musashichan wrote:
Your UV shots are always amazing !


Thank you!


PostPosted: Mon Nov 12, 2018 11:13 am    Post subject: Reply with quote
late Autumn... [beware if you have vertigo...]















PostPosted: Mon Nov 12, 2018 3:02 pm    Post subject: Reply with quote
incredible picture! Like 1 Like 1 Like 1


PostPosted: Mon Nov 12, 2018 4:53 pm    Post subject: Reply with quote
Groovy, man!
Far out.

I want these on my walls, the last one especially.

Its a good substitute for trying mushrooms again.


PostPosted: Mon Nov 12, 2018 5:55 pm    Post subject: Reply with quote
Thanks guys!!


luisalegria wrote:
Groovy, man!
Far out.

I want these on my walls, the last one especially.

Its a good substitute for trying mushrooms again.


Well, it IS rather psychedelic indeed even looking through the EVF!
Just defocus a bit and that pops out... no shrooms needed Wink

Here focused and defocused in comparison:





PostPosted: Mon Nov 12, 2018 10:56 pm    Post subject: Reply with quote
That's not your average 'walkabout lens' by any stretch of the imagination. Shocked But it's a lens I'd have in my bag ready for that 'special moment' all day long. Cool


PostPosted: Mon Nov 12, 2018 11:37 pm    Post subject: Reply with quote
Lloydy wrote:
That's not your average 'walkabout lens' by any stretch of the imagination. Shocked But it's a lens I'd have in my bag ready for that 'special moment' all day long. Cool


Cannot more than agree, same idea I have about it!!


PostPosted: Sun Dec 23, 2018 11:44 am    Post subject: Reply with quote
Now here what that lens was originally designed for, reflected UV photography. Target was a Oncostele Wildcat orchid hybrid.



This Lyman Alpha II f1.1/90mm does work well in UV seemingly (right side). It is A rather "unfriendly" comparision of its f1.1 to the UV Nikkor 105mm at f4.5 (left) [UV-Nikkor 105mm with Baader-U front filter, Lyman Alpha II with rear UG11+S8612 filter stack]

For reference, this is the normal visual light shot of it...

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