JML 21mm f/3.5 first shot
Moderators: rjlittlefield, ChrisR, Chris S., Pau
JML 21mm f/3.5 first shot
Just got my adapter for the JML 21mm f/3.5 yesterday and I tested it with my DSLR today.
My equipments:
Nikon D3s DSLR
JML 21mm f/3.5 lens (used as a finite objective)
Nikon PB-6 bellow
Nikon R1C1 flash set
StackShot rail
Let's see the adapter first:
It's a custom made metal adapter with the diameter exactly the same as the JML lens. On the left of the picture is the JML, on the right is the adapter, the tail of the adapter is a M42 male thread. I took this picture in my studio.
There are 3 small inner hexagon screws designed for locking the lens (the JML has a round slot on its tail, as you can see in the picture above. I used these 3 screws to fit into this slot but one can also slide the lens deeper and let the screws "bite" the surface of the lens). (updated in 4/8/2012: I found it better to wind couples of layer of tapes around the round slot inside, or the screws will eat some paint of the surface)
Here is the picture of the two things put together nicely.
This is my setup with Nikon PB-6 bellow, I used a T2-ring to connect the bellow and the adapter. (The T2-ring has a 42mm female thread on one side and a F-mount on the other)
Here is the first thing I test with this setup, a very small flower:
And the result here. 7x magnification, each image with shutter speed=1/250 and custom WB. 145 Stacks in Zerene Stacker (PMax).
Full resolution here :http://www.better-design.com.tw/downloa ... -07-31.jpg
Another setup with 3 Kenko extension tubes (together for 6X magnification)
Test shot of a needle, each image with shutter speed=1/250 and custom WB. 40 Stacks in Zerene Stacker (PMax). Photoshop sharpening and retouching.
Full resolution here :http://www.better-design.com.tw/downloa ... -08-03.jpg
Similar set with one Kenko extension tubes for 4.5X magnification. A head of a nail, each image with shutter speed=1/250 and custom WB. 98 Stacks in Zerene Stacker (PMax). Photoshop sharpening and retouching.
Full resolution here :http://www.better-design.com.tw/downloa ... -08-13.jpg
The results are very good to me. Any comment is welcomed.
My equipments:
Nikon D3s DSLR
JML 21mm f/3.5 lens (used as a finite objective)
Nikon PB-6 bellow
Nikon R1C1 flash set
StackShot rail
Let's see the adapter first:
It's a custom made metal adapter with the diameter exactly the same as the JML lens. On the left of the picture is the JML, on the right is the adapter, the tail of the adapter is a M42 male thread. I took this picture in my studio.
There are 3 small inner hexagon screws designed for locking the lens (the JML has a round slot on its tail, as you can see in the picture above. I used these 3 screws to fit into this slot but one can also slide the lens deeper and let the screws "bite" the surface of the lens). (updated in 4/8/2012: I found it better to wind couples of layer of tapes around the round slot inside, or the screws will eat some paint of the surface)
Here is the picture of the two things put together nicely.
This is my setup with Nikon PB-6 bellow, I used a T2-ring to connect the bellow and the adapter. (The T2-ring has a 42mm female thread on one side and a F-mount on the other)
Here is the first thing I test with this setup, a very small flower:
And the result here. 7x magnification, each image with shutter speed=1/250 and custom WB. 145 Stacks in Zerene Stacker (PMax).
Full resolution here :http://www.better-design.com.tw/downloa ... -07-31.jpg
Another setup with 3 Kenko extension tubes (together for 6X magnification)
Test shot of a needle, each image with shutter speed=1/250 and custom WB. 40 Stacks in Zerene Stacker (PMax). Photoshop sharpening and retouching.
Full resolution here :http://www.better-design.com.tw/downloa ... -08-03.jpg
Similar set with one Kenko extension tubes for 4.5X magnification. A head of a nail, each image with shutter speed=1/250 and custom WB. 98 Stacks in Zerene Stacker (PMax). Photoshop sharpening and retouching.
Full resolution here :http://www.better-design.com.tw/downloa ... -08-13.jpg
The results are very good to me. Any comment is welcomed.
Last edited by Acon on Mon Aug 13, 2012 1:08 am, edited 15 times in total.
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- rjlittlefield
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Adapter looks great. Stack looks good too -- about what we're used to seeing from the JML 21. One issue is that I had a lot of trouble getting through the shortcut URL. Direct link is to http://www.better-design.com.tw/downloa ... -07-31.jpg.
--Rik
--Rik
Has been very good photo, Acon.
This mount is very good. But I make a frame that snaps, no screws, and I cut a piece to the lens may be fitted for a diaphragm. It is perfect and we can benefit from the use of a diaphragm with very interesting results. It is in my opinion (not because I have done) the best mount I've seen for this lens. It is made of acetal (a very durable plastic and easy to work on a lathe) and the external thread, is aluminum M42. The downside is that you remove at lens the letters of the name.
This mount is very good. But I make a frame that snaps, no screws, and I cut a piece to the lens may be fitted for a diaphragm. It is perfect and we can benefit from the use of a diaphragm with very interesting results. It is in my opinion (not because I have done) the best mount I've seen for this lens. It is made of acetal (a very durable plastic and easy to work on a lathe) and the external thread, is aluminum M42. The downside is that you remove at lens the letters of the name.
Nice setup, nifty adapter and great result, Acon.
I like the added diaphrag, Javier. I wonder what the results are when stopped down.
I like the added diaphrag, Javier. I wonder what the results are when stopped down.
Last edited by canonian on Tue Jul 31, 2012 7:19 am, edited 1 time in total.
Fred
Canonian@Flickr
Canonian@Flickr
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I can see them now by clicking the error image to link to the original imageshack pages.
Javier's work is cool, it seems to need good skills. And what's the benefit of the iris? I saw some adapter with iris on ebay (maybe M42 but I don't remember the detail), what if I add such a adapter to my recent adapter behind? Will the same effect or benefit appear like Javier's one?
Javier's work is cool, it seems to need good skills. And what's the benefit of the iris? I saw some adapter with iris on ebay (maybe M42 but I don't remember the detail), what if I add such a adapter to my recent adapter behind? Will the same effect or benefit appear like Javier's one?
If you put the lens as you have, then there is great distance from the lens back to the iris, and would make a picture clipping effect. Therefore I cut the lens, so that the rear lens remains as close to the diaphragm. Thus it would be more effective. The reason for putting the diaphragm is to make the last photo of the stack and thus have a less sharp background blur. I wonder if you understand me.
If this photo had not closed the diaphragm in the last photo, there would be nothing wing of the bee.
bee-red por Javier Replinger, en Flickr
If this photo had not closed the diaphragm in the last photo, there would be nothing wing of the bee.
bee-red por Javier Replinger, en Flickr
- rjlittlefield
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So a diaphragm (=iris?) acts like a aperture of a normal camera lens? Shrink the the diaphragm down to add the depth of field just like we normally do with raising the f-stop number?
Last edited by Acon on Tue Jul 31, 2012 7:53 am, edited 2 times in total.
Yes Acon. We use it to make the last picture with more depth of field and get the cut between the sharp and blurred more gradual. If you do not use it, what with the sharp focus, there is an abrupt jump.Acon wrote:So a diaphragm (=iris?) acts like a aperture of a normal camera lens? Shrink the the diaphragm down to add the depth of field just like we normally do with raising the f-stop number?
regards
Hi Acon, Lovely capture and nice adapter. Looks solid. Can you also reverse the JML lens in the adapter?Acon wrote:The result is very good to me. I couldn't test the smaller magnification because with 7X my bellow is squeezed to it's shortest distance.
I know the pitch is different, but have you tried mounting the jml adapter on your T2 to Nikon mount ? Sometimes you are able to do this depending on how its machined.
Hi Javier, Great photo. How far did you close down the diaphragm in this photo?jotafoto wrote: If this photo had not closed the diaphragm in the last photo, there would be nothing wing of the bee.
Thanks,
Rakes