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The Trioplanator
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PostPosted: Mon Jun 22, 2015 4:06 pm    Post subject: The Trioplanator Reply with quote
A while ago I had the idea that some optical modification may allow "a lens" to achieve a Trioplan-like bokeh performance.

So I did some calculations and finally came up with some lens modification.

BEFORE:


AFTER:


What do you think, was it worth it?

(I won't release details until I have done more testing of that idea with various other lenses...)


PostPosted: Mon Jun 22, 2015 6:34 pm    Post subject: Reply with quote
In my opinion YES proceed, I have to know how when you have completed your thesis.Regards Smile


PostPosted: Mon Jun 22, 2015 7:49 pm    Post subject: Reply with quote
That looks very interesting!


PostPosted: Mon Jun 22, 2015 8:21 pm    Post subject: Reply with quote
Interesting, indeed - the Bokeh looks Trioplan-like!
How is sharpness changed by this modification?
Due to the form of the flower and the size of the second photo it's a bit difficult for me to see that.


PostPosted: Tue Jun 23, 2015 12:14 am    Post subject: Reply with quote
Bokeh looks good but I'd like to see a 100% crop for sharpness.


PostPosted: Tue Jun 23, 2015 1:01 am    Post subject: Reply with quote
Just missed out on an actual 100/2.8 trioplan :/ that bokeh looks lovely.


PostPosted: Tue Jun 23, 2015 1:23 am    Post subject: Reply with quote
Looks good to me.

I say definitely go ahead with this as too many people are paying too much money for Trioplans.

I also had an idea for creating bright outlines on out of focus highlights but I bet your idea is different!


PostPosted: Tue Jun 23, 2015 2:48 am    Post subject: Reply with quote
dan_ wrote:
Interesting, indeed - the Bokeh looks Trioplan-like!
How is sharpness changed by this modification?
Due to the form of the flower and the size of the second photo it's a bit difficult for me to see that.



Sharpness is "somewhat acceptable" (for me), at infinity ...


and closeup:




(all shot fully open at f2.8 )


PostPosted: Tue Jun 23, 2015 6:10 am    Post subject: Reply with quote
Poor optical engineers, years of study and calculations to come out with a corrected lens and then... Laughing

Anyway, yes, experimenting is always good.


PostPosted: Tue Jun 23, 2015 6:13 am    Post subject: Reply with quote
kds315* wrote:
Sharpness is "somewhat acceptable" (for me), at infinity ...


(all shot fully open at f2.8 )


I would say sharpness is a lot better than Trioplan wide open Wink


PostPosted: Tue Jun 23, 2015 7:32 am    Post subject: Reply with quote
Yes, I was joking, I'm more than happy with the sharpness and performamce of it!


PostPosted: Tue Jun 23, 2015 8:51 am    Post subject: Reply with quote
Sharpness looks much better than Trioplan, indeed. It could be a more useful lens than the Trioplan is.
If "a lens" means a lot of lenses then this modification could become very popular. Congrats!


PostPosted: Tue Jun 23, 2015 9:05 am    Post subject: Reply with quote
Thumps up, by all means!


PostPosted: Tue Jun 23, 2015 12:51 pm    Post subject: Reply with quote
Intriguing!


PostPosted: Tue Jun 23, 2015 1:55 pm    Post subject: Reply with quote
Thanks guys, I'll keep you posted!



PostPosted: Tue Jun 23, 2015 1:58 pm    Post subject: Reply with quote
Superb,I definitely want one Very Happy


PostPosted: Tue Jun 23, 2015 2:01 pm    Post subject: Reply with quote
Well, it is quite easy to foresee what will happen. Someone grabs the idea, most likely in China and mass produces that. Crying or Very sad


PostPosted: Tue Jun 23, 2015 2:03 pm    Post subject: Reply with quote
kryss wrote:
Superb,I definitely want one Very Happy


+1


PostPosted: Tue Jun 23, 2015 2:17 pm    Post subject: Reply with quote
kds315* wrote:
Well, it is quite easy to foresee what will happen. Someone grabs the idea, most likely in China and mass produces that. Crying or Very sad


If it's your idea, and it turns out that it works, then go and have it mass-produced yourself i'd say!

Keep up the good work, i guess there is a market for an item/part/filter that can turn "a lens" into a Trioplan bokeh-clone!


PostPosted: Tue Jun 23, 2015 4:15 pm    Post subject: Reply with quote
I know this project is going to work out. It has to. After all I just recently, finally, acquired a Trioplan myself.

Last edited by newst on Wed Jun 24, 2015 3:29 pm; edited 1 time in total


PostPosted: Wed Jun 24, 2015 6:49 am    Post subject: Reply with quote
TrueLoveOne wrote:

If it's your idea, and it turns out that it works, then go and have it mass-produced yourself i'd say!


+1


PostPosted: Wed Jun 24, 2015 10:09 am    Post subject: Reply with quote
Hello Klaus, at the moment I do not see the typical Trioplan bokeh with much brighter borders here. Do you have such images too?

Diaplan 100mm f/2.8 (Trioplans cheaper sister)


PostPosted: Sun Jun 28, 2015 5:36 pm    Post subject: Reply with quote
To get the soap bubble bokeh I took an old idea into praxis:


This was made with a modified Helios 44, which is now very Trioplan 100 like.


PostPosted: Sun Jun 28, 2015 10:32 pm    Post subject: Reply with quote
Wonderful, so I will stop with my research work Laughing


PostPosted: Sun Jun 28, 2015 10:42 pm    Post subject: Reply with quote
No,No ,No we need Know Very Happy
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