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06-21-2019, 12:52 PM   #421
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Les, nice write up on focusing manual focus lenses "using the camera's viewfinder".


Another option that I always use is putting a 3x Zacuto viewfinder over the LCD on the back of my K-1 camera. I precisely set the diopter on the viewfinder ahead of time. I set focus peaking on. Put the subject in the middle of the LCD. Magnify the LCD screen (4x or 8X). Focus. Un-magnify the screen. Recompose and shoot. Also I'm using a tripod and 2-second shutter delay. While this technique may sound long and complicated, with practice, it takes me no more than 10 seconds per photo.

Yesterday I took about 60 photos using this technique at the Green Bay Wi Botanical Garden. 100% of the images were in sharp focus using a Zeiss Milvus 85mm lens wide open at f/1.4.


Last edited by Fenwoodian; 06-21-2019 at 01:01 PM.
06-22-2019, 02:15 AM - 1 Like   #422
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You can use the 100% instant magnifying button thanks to the LCD display...
06-26-2019, 02:53 PM - 2 Likes   #423
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The Happy Tree Trimmer - 30 foot above the ground! Used my Leica 135/2.8 lens




Last edited by Fenwoodian; 06-26-2019 at 04:20 PM.
07-02-2019, 05:08 AM - 1 Like   #424
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Lac des Bouillouses, Pentax K-1 (II) Leica Elmarit-R 28/2.8 E55 f:6.3. 100Iso.











Last edited by teiki arii; 07-02-2019 at 01:10 PM.
07-02-2019, 01:12 PM   #425
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Lac des Bouillouses, Pentax K-1 (II) Leica Elmarit-R 28/2.8 E55 f:6.3. 100Iso.






07-13-2019, 11:42 AM - 2 Likes   #426
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Gorges de Calança, Pentax K-1 (II) Leica Elmarit-R 28/2.8. Square Format.

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08-25-2019, 03:44 PM - 3 Likes   #427
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Leica 35-70/4 @ f4 & 50mm:

08-26-2019, 03:10 PM - 5 Likes   #428
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Bird on a wire . . . not exactly in focus so not sure why I like it, but I do. Leica 90/2 @ f2:



09-11-2019, 10:01 PM - 2 Likes   #429
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The "bird on a wire" picture above was the last shot I took with my Leica 90 f2. That the bird is slightly out of focus is actually why I don't own the lens anymore.

I loved the lens more than just about any lens I've ever owned, but it had a very strange focusing issue. It would focus just fine for a few shots, and then could not achieve focus at any f stop. The focus assist light indicated things were in focus but in reality wasn't even close. I shot literally hundreds of pictures trying to find something that would result in some sort of consistency and never did find it. I sent the lens to Don Goldberg at DAG and it similarly stumped him (he had me send it back for a second try, I even sent a K5 along so he could test it, but no success). I suspected my camera, except I had two K-1 cameras at the time and it behaved the same with both, plus every other lens I had (including Leica lenses) worked with the K-1. I consulted with David Llado at Leitax and he was stumped (and I tried two different adapters). I liked the lens so much I bought a second one, hoping I just had a bad lens. Nope, same exact behavior. If you read this thread from start to finish you will see other users struggling to focus this lens, doubting their camera, etc. Finally, after seeing a Chinese seller of Leica-Pentax adapters on Ebay exclude the R 90/2 I decided the most likely answer was that the R 90/2 only works inconsistently when adapted to K mount.

I had a brainstorm of trying the 90 Elmarit f2.8, but my first reading of its specs told me it had the same element/group arrangement (5/4) as the 90/2; I worried it would have the same problem. But a few weeks later I discovered the later version of the Elmarit has a 4.4 element/group construction so I gave it a try . . . and it works! I'm still testing it to see if it the same qualities as the Summicron (albeit 2/3 stop slower).

Update: I ended up returning this lens. It is a beautiful lens by any standard, but seemed to lack the magical glow of the Leica 90 Summicron. In fact, I spent time comparing it to my Voigtländer 90 f3.5 and liked the Voigtlander better despite being a bit slower. The CV was as sharp (sharper actually), a lot smaller, and rendered color virtually the same.

Test shot of fern in partial sun after adapting the Elmarit with a Leitax, @ f2.8:


Last edited by les3547; 10-19-2019 at 07:52 AM.
09-22-2019, 01:21 PM - 2 Likes   #430
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Hello,




Leica Elmarit-R 28/2.8 E55 ROM, two images stitched.
09-27-2019, 02:59 PM - 3 Likes   #431
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Leica 50/2 @ f5.6:

09-28-2019, 07:27 PM - 1 Like   #432
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Taken this afternoon alongside a country road that winds through a forest here in northern Wisconsin USA. I used my Leitax adapted Leica Telyt-R 350mm f/4.8 lens on my K-1. Aperture was wide open.


The dusty car is mine (wife's inside doing Suduko). This lens is so sharp that when viewed at 100% I can see individual grains of dust on the back window.


I'm impressed with the creaminess of the bokeh! I did not do any post processing on the blur, right out of camera.

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Last edited by Fenwoodian; 09-28-2019 at 07:41 PM.
10-16-2019, 12:39 PM - 1 Like   #433
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I was out this morning doing a comparison between my Zeiss 35/2 and a Voigtlander Ultron 40/2 because I have my Zeiss for sale (again). In terms of sharpness, the differences were rather imperceptible without pixel peeping but the Zeiss was a little sharper on the edges until f5.6, and the Ultron was equal or sharper in the center at all f stops. Relevant to this thread is that I decided to also compare the Zeiss and Ultron to my Leica 35-70 f4 zoom at 35mm. Being only f4, I could only compare them all starting there but I was most surprised to see at f4 the Leica was sharper than the Zeiss and Ultron at the borders and about the same in the center (and absolutely no CA where the Zeiss had it until f8). Of course, as most Leica lovers know, sharpness isn't everything.

Most interesting was how the Leica resolved detail. The Leica defined edges of an object well and was more contrasty with possibly a bit richer color than the Zeiss and Ultron, but tended to "paint" in areas within an object where the Zeiss and Ultron would pull out more detail. For example, in the shots below, if you pixel peep the power line pole or tree with whitish bark to pole's right, it shows the Zeiss and Ultron revealing the pole's hardware and tree's pine needles, but from a distance the pole and tree trunk jump out more overall on the Leica. It's not really resolving more detail but it nonetheless shows key elements of the scene better.

In Erwin Puts book he claims the 35-70 zoom equals or out performs the equivalent Leica R primes. He states too (does this qualify as gushing?) "The first impression when looking at the pictures taken with the LEICA VARIO-ELMAR-R 35-70 mm f/4 with slide films or the current crop of colour negative films, is one of image clarity and pure colours. There is a hint of Matisse here with his use of clean shapes and refreshingly pure colours. The colour rendition of the Leica Vario-Elmar is subtle and powerful at the same time, and offers a good balance of saturation and finely shaded hues." I am not sure of its performance in comparison to Leica primes, but this zoom is absolutely superb and lightweight to boot. Given the cost of a 35, 50, and 75 (the 75 R is incredibly rare anyway) it really is quite the bargain for Leica lovers even including the cost of a Leitax adapter.

A comparison at f5.6—


Full scene with Ultron:




Ultron crop of left:




Zeiss crop:




Leica zoom crop @35mm:




Zeiss extreme crop. Notice more detail on bark shows up than on the Leica:




Leica extreme crop. Although less detail shows the tree overall stands out better:


Last edited by les3547; 10-16-2019 at 01:29 PM.
10-17-2019, 02:30 AM - 1 Like   #434
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I am not sure your protocole can be validated. I think your scene is subject to motion blur. I can confirm the Leica Summicron-R 35/2 is the weakest lens of my Leica-R collection but I still use it, I love it. And I can confirm that the last version of Leica Vario-Elmar 35-70/4 (with asph element) is a very good lens indeed. Of the last rendering generation (Leica Apo-Summicron-R Asph 90/2, Leica Apo-Summicron-R 180/2, Leica Apo-Elmarit-R 180/28, Leica Elmarit-R 28/2.8 E55...). C.A. is very well controlled by Leica, and was known for that! Just the distorsion can create some problems with Leica Vario-Elmar 35-70/4 ROM at 35mm... and vignetting at f:4. And very well-known as well for micro and macro-contrast with pop-ud "3D" rendering...
12-10-2019, 03:11 PM - 2 Likes   #435
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I just love how Leica R glass produces "rich" colors. It's freezing here today. I just went outside into my cold garage and shot a bunch of TEST PHOTOS of garage junk. No fancy post processing - right of of my K-1 camera (jpg's in the "natural" color mode).

I just bought 4 Leica "Colorplan" projector lenses. I've already adapted one of them for Fuji X body; and one for use on my Pentax K-1 body. I have Sony NEX, Nikon F. and Canon FE mounts - maybe I'll have to adapt the last two to these mounts?

Anyway, the Colorplan projector lens version that I favor is the original made-in-Germany silver version. It is a Mandler design that has virtually identical optics to the Leica Summicron 90mm f/2 pre-ASPH lens. Below are my quick garage photos I took with the Colorplan on my K-1.

With the helicoils I use, on DSLR bodies, the Colorplans can only focus on close subjects. However I have found that with my helicoils, on a mirrorless body, I can get just about infinity focus.

Nice colors for an old, $75 USD slide projector lens!
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Last edited by Fenwoodian; 12-11-2019 at 09:27 AM.
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