NikonGear'23
Gear Talk => Lens Talk => Topic started by: Ian R on February 23, 2019, 16:02:46
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I just thought I'd share some photos I took this morning with the very early 1960's Isco lens. To me, this type of lens gets me out there. Not heavy, offers creativity, makes me think. Plus they are inexpensive! I picked up this lens from the charity shop for £40. Quite a bit, but cheaper than most protect filters!
First photo is of the lens, and the others are from this morning used on my Df.
Its an M42 lens and after a service and calibration of the focus it was ready to go. No other tools than a small screwdriver needed!
Just thought I'd share this as I am really enjoying what I am getting. Its inspiring me in a way that the Sigma Art 50mm never even hinted at - that was just like photocopying reality, not what I was wanting to see. Now I have the Z6 I will be definitely exploring this avenue and am already working on adapting some similar lenses.
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I clearly understand your enthusiasm :D
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Beautifull results, Ian.
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Beautifull results, Ian.
I agree.
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Thank you for the comments and input.
Everyone is different of course, but this is the sort if lens that gets me out and seeing photos and enjoying the moment. I have bought quite a few lenses on the strength of the online reviews and resolution charts. Those are the ones I use the least.
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Ian, you've got a nice tool! These images prove that you were inspired.
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Thanks Akira. Yes, I was very inspired and forgot my appetite.
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Congrats, very nice lens it is (I have it too...)
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Nice pictures indeed !
Good looking lens made with metal, and it seems to be in nice condition. I like the pattern of the rings.
I am now on the same step to find out about quality of M42 lens.
Hovever, I don't get infinity with M42 lens when I use the M42/Nikon F adapter ring on my Df. Perhaps the M42/Z6 adapter allows it ? It has just to be shorter than the FTZ adapter in order to comply with M42 registration distance.
So far, I got the Zeiss biotar 58mm f/2, plus Hugo Meyer optics 100mm and 35mm (lydith) which I use on the Sony nex 5.
Good luck ! ;)
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M42 to Nikon Z adapters are now available on Ebay and the like. They should provide infinity focus without modifying the lens.
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Thanks for the comments.
Concerning adapters, with this lens and a simple F-M42 ring, I can focus out to around 20 feet. With the Z-M42 I can focus to infinity. The Pico Z adaptor I purchased has a flange distance 0.10 mm undersized. I added a shim.
Ultimately the Z range will allow more flexibility with focusing, but the electronic viewfinder does not show some of the subtle optical effects such as the sun grazing the front element and lowering contrast etc.
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There are a number of M42 lenses which can reach infinite focus with a very slim F-M42 adapter, especially if the focal length is longer than 85mm.
The 135/4 Carl Zeiss Jena Triotar is an example.
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Congrats, very nice lens it is (I have it too...)
by now I think the list of lenses you do not own is shorter that the other ;-)
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very clean look, nice bokeh. I am more into the dramatic rendering department. For clean looks I use my current advanced E & G Nikkors.
Thank you for sharing
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Yes John you are right. Oddly enough I have an M42 copy of that lens and got it to reach infinity on an F-mount camera. I am afraid that IQ wise, my copy of the lens is somewhat average. A pity as it looks quite splendid in its aluminium skin.
There are a number of M42 lenses which can reach infinite focus with a very slim F-M42 adapter, especially if the focal length is longer than 85mm.
The 135/4 Carl Zeiss Jena Triotar is an example.
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The F mount is 1mm longer in register plus the adaptor so any lens able to reach infinity on the F mount with adaptor would well overshoot on an M42 camera. I used a micrometer to set my adapter, and with a 50mm f/2.8 M42 Zeiss Jena, that overshoots infinity just a little. I don't think lens calibration was that exact back then. I calibrated my 100mm shown here by using the moon. Now just before the lens hits the focus stop I can feel the helical just starting to bottom out.
I used to spend hours with a ground glass and a loupe calibrating my old rangefinder cameras. Bit of a waste of time really, but at least I learnt something - and got the cameras working their best.
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Lovely images and nice rendering. Shows you don't need a super-fast lens to get nicely defocused backgrounds.
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There are a number of M42 lenses which can reach infinite focus with a very slim F-M42 adapter, especially if the focal length is longer than 85mm.
We can say that. in my experience, I get infinity provided with F bodies if you stop down toward f/22 thanks a deeper DOF. At full aperture I don't. (using the 100mm f/2.8 trioplan)
This is why I am expecting a true infinity with a M42/Z adapter ring I ordered recently for my Z6 I bought few days ago.
Wait and see, but I am glad Ian confirmed it... :)
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We can say that. in my experience, I get infinity provided with F bodies if you stop down toward f/22 thanks a deeper DOF. At full aperture I don't. (using the 100mm f/2.8 trioplan)
This is why I am expecting a true infinity with a M42/Z adapter ring I ordered recently for my Z6 I bought few days ago.
Wait and see, but I am glad Ian confirmed it... :)
Did you order the Pixco adapter? That reached infinity perfectly, however a couple of points. The Pixco is exactly 0.1mm too short. This is by design, but its good that it is an exact figure as by adding a 0.1mm shim under the metal threaded insert you are now spot on to M42 standard. Coper tape is conveniently 0.1mm. Also the internals are not treated with any anti-reflective material. I added my own high quality flocking.
Now I feel happy that I have got it right as can be and I can hunt down some more M42's.
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I've ordered this one : https://www.ebay.co.uk/itm/M42-screw-mount-lens-to-Nikon-Z-mount-full-frame-mirrorless-camera-adapter-Z6-Z7/401646385553
This is Roxsen stuff which I know already the quality. But it is written ''Pixco'' on the item. It seems black inside but no mention on the description. Will see when I get it.
I love the aluminium body lenses : I am seeking a primagon 35mm (meyer optics) in M42 mount. Unfortunately, there are mostly in Exacta mount. ::)
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That's the one Rosco. Very nice machining - I appreciated that - but do add some internal light damping if you can. I had some black 1mm light trap felt which was just enough to do the inside. If you don't, you may run into instances where the light bounces about inside.
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I am guessing the rear element of this lens is recessed in and thus won't hit the mirror of a FX Nikon when adjusted to infinity, is that correct?
Can you describe how with a screw driver infinity is adjusted?
Thanks.
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I am guessing the rear element of this lens is recessed in and thus won't hit the mirror of a FX Nikon when adjusted to infinity, is that correct?
Can you describe how with a screw driver infinity is adjusted?
Thanks.
Absolutely no mirror interference - there is only the lens mount at the rear.
To set infinity you remove the front lens ring with a rubber lens wrench, then loosen the three screws underneath - this allows the focus collar to move independently from the optics. You can then set up the focus to match your adapter and re tighten the screws.
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Absolutely no mirror interference - there is only the lens mount at the rear.
To set infinity you remove the front lens ring with a rubber lens wrench, then loosen the three screws underneath - this allows the focus collar to move independently from the optics. You can then set up the focus to match your adapter and re tighten the screws.
Thank you that is very helpful. So long as the movement range is not too big this is a simple way to achieve infinity focus.
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I've ordered this one : https://www.ebay.co.uk/itm/M42-screw-mount-lens-to-Nikon-Z-mount-full-frame-mirrorless-camera-adapter-Z6-Z7/401646385553
This is Roxsen stuff which I know already the quality. But it is written ''Pixco'' on the item. It seems black inside but no mention on the description. Will see when I get it.
I love the aluminium body lenses : I am seeking a primagon 35mm (meyer optics) in M42 mount. Unfortunately, there are mostly in Exacta mount. ::)
Have a look here: https://www.photohaus.de/shop/meyer-optik-primagon-45-35mm-m42/
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Have a look here: https://www.photohaus.de/shop/meyer-optik-primagon-45-35mm-m42/
Thanks for the link, Bent !
I had a look (with the help of Google translate ! :))
Price is correct but the postage is too expansive (29€)
I just got an adapter (Exacta to Z) in case... ;)
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You are welcome Francis.
The postage is too high for items that cost 69€ :o
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The postage is too high for items that cost 69€ :o
And regarding the size/weight (155gr.) ! :P :D