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3D stereo experiments with adapted MF lenses
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PostPosted: Fri Oct 18, 2024 3:44 pm    Post subject: Reply with quote
simple.joy wrote:


and finally two with the absolutely crazy Benoist Berthiot Cinestar GC 70 mm f/1.55:






Yes crazy, but crazy nice. I love the masked leaf. It's probably looking to tag along the trick or treatin' on Halloween.


PostPosted: Fri Oct 18, 2024 3:48 pm    Post subject: Reply with quote
simple.joy wrote:


Wonderful set with such great variation - really enjoy them all!


Thanks, after working a lot this week, I was rewarding myself with a stroll through town on the first sunny evening for some time, trying to get to know my Vario-Sonnar 35-70 (again - I had it already a while back).


PostPosted: Fri Oct 18, 2024 6:16 pm    Post subject: Reply with quote
e6filmuser wrote:

He had to go, replaced by annoying fuzz but some improvement:



I'm not sure if it would if I didn't, but now that I know, I think it bothers me much more than with the guy in the red jacket. Like I said, I don't mind a little movement in the back. Perfection is overrated. The image has such great depth, that's what makes me like it a lot.


I have a few more from my stroll in town...

#1


#2


#3


#4


#5


#6


#7


PostPosted: Sun Oct 20, 2024 4:07 pm    Post subject: Reply with quote
And once again some more pictures from yesterday. I took the camera out again to shoot the morning fog. All images shot with the Contax Vario-Sonnar 3.4/35-70

#1


#2


#3


#4


#5


#6


PostPosted: Sun Oct 20, 2024 8:59 pm    Post subject: Reply with quote
backsidewalkaround wrote:


#4


#3


#5



Really excellent - these in particular! Love them.


PostPosted: Sun Oct 20, 2024 9:22 pm    Post subject: Reply with quote
#1

(Cinestar GC 70 mm f/1.55)

#2

(Busch Neokino 120 mm - before fixing the arrangement of lens elements)

#3

(Busch Neokino 120 mm - after fixing the arrangement of lens elements)

#4

(Goerz Kromar 9 cm f/1.9)

#5

(Goerz Kromar 9 cm f/1.9)

#6

(Agfa Ocellar 5 cm)


PostPosted: Mon Oct 21, 2024 12:03 pm    Post subject: Reply with quote
Am I keeping to the spirit of the topic? I have a lens which I use for most of my macro at moderate magnification. It has AF capability but I use both the camera in Manual Mode and the lens in manual focus. It is a 4/3 lens adapted to a micro 4/3 camera. The following images were shot with that. If acceptable, I have hundreds of stereo pairs.

Bonnet mushrooms shot yesterday, in the rain, some running off a cap.

Lens: Olympus 4/3 50mm f2 macro on 4/3 to m4/3 adapter. Twin flash.



PostPosted: Fri Oct 25, 2024 10:00 pm    Post subject: Reply with quote
e6filmuser wrote:
Am I keeping to the spirit of the topic? I have a lens which I use for most of my macro at moderate magnification. It has AF capability but I use both the camera in Manual Mode and the lens in manual focus. It is a 4/3 lens adapted to a micro 4/3 camera. The following images were shot with that. If acceptable, I have hundreds of stereo pairs.

Bonnet mushrooms shot yesterday, in the rain, some running off a cap.

Lens: Olympus 4/3 50mm f2 macro on 4/3 to m4/3 adapter. Twin flash.



A bit hard to look at (I don't know why), but I like the shiny caps of the mushrooms and the running water that is surprisingly uniform.


PostPosted: Fri Oct 25, 2024 10:02 pm    Post subject: Reply with quote
simple.joy wrote:

#5

(Goerz Kromar 9 cm f/1.9)



I love this one, particularly the water droplets. Such clarity and crispness.


PostPosted: Sat Oct 26, 2024 5:43 am    Post subject: Reply with quote
Some kind of stereo adapter would be nice, so you can shoot portraits as well.


PostPosted: Sat Oct 26, 2024 8:05 am    Post subject: Reply with quote
caspert79 wrote:
Some kind of stereo adapter would be nice, so you can shoot portraits as well.


Portraits are not (much of) a problem. If your model holds still, it works well doing the cha cha Smile. Just don't take too long (model's impatience - or ability to stay frozen). If you shoot two frames about one or two seconds apart it works well. If you really need to hurry, I've had some success shooting in burst mode while moving to the side, trying to keep the subject in the same spot. The disadvantage with this method is that you need to crank the shutter speed way up, in order not to have motion blur and you have to start moving before the first click. However shooting action is still out of the question.

I do have a stereo adapter, but it's not adapted yet. It's from an old Zeiss Contaflex. You can find pictures of it here: Steritar. I had made a DIY adapter for using the Contaflex Pro Tessar lenses I had acquired before, not knowing I'd need the lens from the inside of the camera in order to use it. You have to make the adapter from a broken camera, because you need the lens inside it. A while back I took my adapter apart, because the Steritar was tilted. I haven't gotten to fixing it yet, but maybe I'll find the time now - so thanks for reminding me Smile.


PostPosted: Sat Oct 26, 2024 10:46 am    Post subject: Reply with quote
backsidewalkaround wrote:
caspert79 wrote:
Some kind of stereo adapter would be nice, so you can shoot portraits as well.


Portraits are not (much of) a problem.


Interesting - I never thought of that (stereo portraits). I actually should rig up two of my A900 with two of my MinAF 1.4/85 and start working Wink

S


PostPosted: Sat Oct 26, 2024 3:00 pm    Post subject: Reply with quote
stevemark wrote:
backsidewalkaround wrote:
caspert79 wrote:
Some kind of stereo adapter would be nice, so you can shoot portraits as well.


Portraits are not (much of) a problem.


Interesting - I never thought of that (stereo portraits). I actually should rig up two of my A900 with two of my MinAF 1.4/85 and start working Wink

S


Beware of blinking. I suspect that portrait specialists get the subject to blink deliberately before the first shot.


PostPosted: Sun Oct 27, 2024 7:54 am    Post subject: Reply with quote
Nice shots everyone!

Here are some new taken with the Carl Zeiss Jena Prakticar 50mm f1.4.


#1


#2


#3


#4


#5 This one is taken with an Olympus F.Zuiko 32mm f1.7.


PostPosted: Sun Oct 27, 2024 8:18 am    Post subject: Reply with quote
blotafton wrote:
Nice shots everyone!

Here are some new taken with the Carl Zeiss Jena Prakticar 50mm f1.4.



Wonderful captures - love the colors and mood in those!


PostPosted: Sun Oct 27, 2024 9:05 am    Post subject: Reply with quote
blotafton wrote:
Nice shots everyone!

Here are some new taken with the Carl Zeiss Jena Prakticar 50mm f1.4.


Full aperture? Very nice bokeh!


PostPosted: Sun Oct 27, 2024 9:13 am    Post subject: Reply with quote
simple.joy wrote:
blotafton wrote:
Nice shots everyone!

Here are some new taken with the Carl Zeiss Jena Prakticar 50mm f1.4.



Wonderful captures - love the colors and mood in those!


Thanks! Yeah it feels like yellow tinted glass enhances the fall colors. Works best in the late fall when everything is brown, no color corrections needed Smile


PostPosted: Sun Oct 27, 2024 9:14 am    Post subject: Reply with quote
e6filmuser wrote:
blotafton wrote:
Nice shots everyone!

Here are some new taken with the Carl Zeiss Jena Prakticar 50mm f1.4.


Full aperture? Very nice bokeh!


Yes. It's a bit more busy then other f/1.4s but I like! Thanks!


PostPosted: Sun Oct 27, 2024 9:19 am    Post subject: Reply with quote
Another rule-bender: Olympus 4/3 50mm f2 macro on 4/3 to m4/3 adapter. Manual mode. Twin flash.

I also had images via my Laowa 25mm x2.5-x5 but they were fogged by residual moisture in the camera after a very wet day out.

If this is the species I think it is, there are only about 3 previous UK records and none of them recent.

Slime mould Heterotrichia major. the only shiny red species I have found.

FOV ca 7mm wide.




PostPosted: Sun Oct 27, 2024 9:32 am    Post subject: Reply with quote
stevemark wrote:
backsidewalkaround wrote:
caspert79 wrote:
Some kind of stereo adapter would be nice, so you can shoot portraits as well.


Portraits are not (much of) a problem.


Interesting - I never thought of that (stereo portraits). I actually should rig up two of my A900 with two of my MinAF 1.4/85 and start working Wink

S


A friend of mine really is into stereo photography. He built several such rigs using cheap (small) Canon DSLRs, mounting them on a slide rail, fitting them with the same lens. I don't really know how he triggers them, but he figured out a way to do it simultaneously. This way he can shoot sports without much problems. I don't know about the AF, but I guess I would turn it of and try to zone focus with a mid aperture setting like f/5.6.

If you have two identical cameras and lenses, why not give it a try. The only thing that might be bad is that the cameras are too big resulting in images to far apart for perfect 3D. I assume it will still work very well, especially with a tele lens and some distance, where it might even be good for enhancing the effect a little.


PostPosted: Sun Oct 27, 2024 9:35 am    Post subject: Reply with quote
e6filmuser wrote:
Another rule-bender: Olympus 4/3 50mm f2 macro on 4/3 to m4/3 adapter. Manual mode. Twin flash.

I also had images via my Laowa 25mm x2.5-x5 but they were fogged by residual moisture in the camera after a very wet day out.

If this is the species I think it is, there are only about 3 previous UK records and none of them recent.

Slime mould Heterotrichia major. the only shiny red species I have found.

FOV ca 7mm wide.




Looks like a bunch of red sausages on a piece of grilled meat on a loaf of bread. Yummi (or not Smile). Very nice lighting and 3D.


PostPosted: Sun Oct 27, 2024 9:39 am    Post subject: Reply with quote
[quote="blotafton"]Nice shots everyone!

Here are some new taken with the Carl Zeiss Jena Prakticar 50mm f1.4.


#1


#3



Wonderful shots. I like these two best. Like Simple Joy already stated, the mood and colors are outstanding.


PostPosted: Sun Oct 27, 2024 10:34 am    Post subject: Reply with quote
backsidewalkaround wrote:
[Very nice lighting and 3D.


Thanks. The lighting is simple: 2 similar units at about 45 degrees to each side. As it is a tiny specimen, each flash in tilted downwards at 45 degrees, a feature seemingly unique to the units I use.


PostPosted: Sun Oct 27, 2024 3:31 pm    Post subject: Reply with quote
[quote="backsidewalkaround"]
blotafton wrote:
Nice shots everyone!

Here are some new taken with the Carl Zeiss Jena Prakticar 50mm f1.4.


Wonderful shots. I like these two best. Like Simple Joy already stated, the mood and colors are outstanding.


Thank you!


e6filmuser wrote:
Another rule-bender: Olympus 4/3 50mm f2 macro on 4/3 to m4/3 adapter. Manual mode. Twin flash.

I also had images via my Laowa 25mm x2.5-x5 but they were fogged by residual moisture in the camera after a very wet day out.

If this is the species I think it is, there are only about 3 previous UK records and none of them recent.

Slime mould Heterotrichia major. the only shiny red species I have found.

FOV ca 7mm wide.





Interesting specimen!


PostPosted: Sun Oct 27, 2024 3:57 pm    Post subject: Reply with quote
blotafton wrote:
Interesting specimen!


Take a look here (not my images).

https://hiddenforest.co.nz/slime/familymenu.htm
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