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  1. BrianS

    Leica Showcase KMZ 3.5cm F2.8 Jupiter-12 in LTM

    On mine- three set screws at the top of the focus ring. Looks like they can be loosened and the ring be turned. Next time I setup for lens work, I'll try it- mine is slightly off. Right now my "electronics lab" is at home, and has over-run my workshop used for camera work. No complaints- I get...
  2. BrianS

    Leica Showcase Minolta Chiyoko 3.5cm F3.5 in Leica Thread Mount

    A few more from this week. This is one of the better Tessar formula lenses that I've shot with.
  3. BrianS

    GAS: Please Share your Latest Acquisitions Big and Small

    https://www.ebay.com/itm/NIB-NEW-ICOP-VDX3-6754-1G-Vortex86DX3-PC104-Module-With-Cables-set-NR/283705148883 I've been using PC104 for embedded computers since before they standardized it- going back to the Ampro Littleboard Z80a 4MHz board with 64KBytes of memory running CP/m. That board, in...
  4. BrianS

    Leica What adapter to use for Nikkor-PC 10.5cm

    For framing- the S-Mount and Contax RF mount 85mm lens works out better than the 105. The Amedeo adapter that accommodates the external mount lenses brings up the 50/75 framelines. The 75mm lines work out to be 100% framing for an 85mm lens at 6ft or so. The price on the Nikkor 10.5cm F2.5 in...
  5. BrianS

    Nikon Praise for Df

    I've had mine since the day it was sold in stores. The author also has a Leica M-E (CCD Version) https://measuringlight.com/2020/04/11/homage-to-my-leica-m-e/ His taste in digital cameras is much like my own.
  6. BrianS

    W/NW The Mountains Thread

    We took a trip up to Skyline Drive Today, everyone was happy to take a little road trip. Took the M9 with the Minolta Chiyoko 3.5cm F3.5. This lens was introduced in 1956, featured double-coated optics. It is a simple Tessar formula lens, but is very good. Also very rare. How Green was the...
  7. BrianS

    Help needed with Corel Paintshop Pro 2018

    I was able to download the 2020 version of the software, open a ".DNG" file from my Leica M8 and process it. When I save the file, I had to use a "Save As" and then explicitly navigate to the File Folder that I opened the DNG from. This is under Windows 10. SO- like many of these programs, it...
  8. BrianS

    Help needed with Corel Paintshop Pro 2018

    Well- their "Basics of Filing Saving" on the support site does ot cover this, would be the place to look. I'm going to take a look at the free download- I want to see if it supports Monochrome DNG files. Many software programs fail to do so.
  9. BrianS

    Help needed with Corel Paintshop Pro 2018

    I have not used Corel since CorelDraw- But moved this to the Image Processing forum. So- calling all Corel Paintbrush Experts-
  10. BrianS

    Leica Showcase Canon 100mm F3.5, Black Version, 40mm filter thread

    https://www.pbase.com/kkawakami/canon_ltm_100mm_f35_cleaning A Flickr member posted good pictures of the 100/3.5 disassembly procedure.
  11. BrianS

    Leica Showcase Canon 85mm f/1.8 LTM

    The 85/1.8 is a lens that I do not have. It's an interesting design, a 5 element Planar. Nikon moved the F-Mount 85/2, 105/2.5, 135/2.8, and 200/4 to this optical layout. Someday one may fall in my Lap. I have the 85/1.5 and 100/2. The 85/1.5 is a big, heavy, fast, and under-rated lens. I've...
  12. BrianS

    Leica Showcase Canon 50mm F1.8, later Black version.

    https://cameraderie.org/threads/canon-85mm-f-1-8-ltm.38585/ Gave me a chance to use a rarely used feature- I moved the post to the 85/1.8 thread.
  13. BrianS

    Leica Showcase Canon 135 F3.5, Late version

    I have a lot of 135's, use them with my Leica and Nikon RF's. I use the 1.25x magnifier with the M9 and M Monochrom for a 0.85x magnification, not problem with a 135/3.5 wide-open. The M3 is 0.92x. On the Nikon- the viewfinder is 1x magnification, again- no problem using the 135 wide-open.
  14. BrianS

    Formula 5 f/3.5 200mm

    Can you post a picture of the lens? I had a Vivitar 200/3.5, T-4 mount. I bought it for the Elvis concert in 1974, along with a Vivitar 283. I took my High-School SweetHeart and her Mom to see Elvis.
  15. BrianS

    Chinese 35mm f2 V1 Summicron Replica (PIX INCLUDED)

    Pretty amazing how many of these old designs are coming back. I'm on the list to receive the Skyllaney Sonnar once the company can proceed with production. I have the original Sonnars that it implements 85 years later.
  16. BrianS

    AP Makes Exclusive Deal with Sony

    I bought a dead one off Ebay to part out to repair a DCS420- got it for $75 or so. I still have the older DCS200ir, first COTS Full-Spectrum camera sold. As in the very first one sold. They made it for me. $11,400 for the body.
  17. BrianS

    AP Makes Exclusive Deal with Sony

    AP supplies a standard kit. 25 years ago, Kodak made a custom Digital camera for AP, the Kodak NC-2000. It was about $11,000 for the body. I suspect the Sony kit cost much less, not counting inflation.
  18. BrianS

    Leica Adapting a Jupiter-3 in Contax mount for optimum wide open performance

    Anytime that you change the shim- the aperture must be re-indexed, it will not line back up with the marks until you do so. With Contax/Kiev lenses yu can either undo the three set screws that hold it in place, turn the aperture ring, then put them back in after making new Taps OR just cover...
  19. BrianS

    Nikon Nikon Introduces the Z5, lower cost entry into full-frame mirrorless.

    It does not matter to me. The only AF adapter I have is for the Nikon F3AF, from 1983. I will state: that concept could be used, build a low-power Teleconverter to supply the AF function, and pass through the Aperture control. It's not for me- I prefer manual focus and aperture control. A...
  20. BrianS

    Nikon Nikon Introduces the Z5, lower cost entry into full-frame mirrorless.

    Very interesting adapter- I suspect took a lot of looking at a logic analyzer to figure out. Would be interesting to see how they deal with camera/lens firmware updates.
  21. BrianS

    Nikon Nikon Introduces the Z5, lower cost entry into full-frame mirrorless.

    Are there converters that allow the Canon and Sony lenses to autofocus on the Nikon Z-Mount? That would be a fun project.
  22. BrianS

    Nikon Nikon Introduces the Z5, lower cost entry into full-frame mirrorless.

    The "Special Adapter" allows AF functions with Nikon AF-S type lenses with built in motors. AF-D and original AF lenses will work on Manual only. Optically: it will be fine, the F-Mount is a long flange distance. The only lens I own that will not work well is the 2.1cm F4 F-Mount lens of 1959...
  23. BrianS

    Nikon Nikon Introduces the Z5, lower cost entry into full-frame mirrorless.

    Canon has no memory of its past. The people that come up with "new" names have no idea that they are recycling names already used. Canon EF is a camera body. Canon RF is a series of REAL cameras made from the 1940s through to about 1970. Nikon is not perfect. Look up a Nikon S4, you can get...
  24. BrianS

    Nikon Nikon Introduces the Z5, lower cost entry into full-frame mirrorless.

    Leica uses offset microlenses, rather than a uniform array. CCD sensors are best for collecting light coming in at angles. BSI sensors are better than front illuminated sensors. https://en.wikipedia.org/wiki/Back-illuminated_sensor In short, the photo-sensitive layer of the BSI sensor is...
  25. BrianS

    Nikon Nikon Introduces the Z5, lower cost entry into full-frame mirrorless.

    https://www.nikonusa.com/en/nikon-products/product/mirrorless-cameras/z-5.html Quick Take: biggest downgrade is the use of standard CMOS sensor rather than BSI CMOS. The latter accommodates legacy lenses made for short flange distance, like RF lenses. $1400 MSRP for the Body, 3.7MDot EVF...
  26. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    I own a lot of film camera systems, and with Nikon and Leica can carry the lenses over to Digital using their native mount. Shooting film- I used 35mm, 120, and 16mm Subminiature. A Minolta 16-II went with me everywhere. I saw a lot of systems discontinued. With Film, you upgraded the "sensor"...
  27. BrianS

    Leica Adapting a Jupiter-3 in Contax mount for optimum wide open performance

    I have some taps for making the hole for the set screw, and triple-zero drill bits used with a hand-drill. I would not use an electric drill.
  28. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    Not too many people have run 2-D Fourier Transforms on their images. That's the advantage of writing your own image processing software. Adding the FFT to the software was done for one of my wife's papers. "Back in the Day", we had custom lenses made to match the sensors that we had made. One...
  29. BrianS

    Leica Showcase Sankyo Kohki W-KOMURA 28mm f/3.5 in LTM

    That looks close to the Nikkor 2.8cm F3.5 formula- from memory. A 2-1-1-2 layout.
  30. BrianS

    Leica Adapting a Jupiter-3 in Contax mount for optimum wide open performance

    One full revolution of the barrel in the mount is 0.5mm. A 90degree turn is 0.125mm, and is usually just right. You would be best to mark the position of the barrel and lens for the 90degree turn, and make a paper or aluminum foil shim to hold the lens in place, to make sure the lens is firmly...
  31. BrianS

    Leica Adapting a Jupiter-3 in Contax mount for optimum wide open performance

    There should be a set screw holding the optics module in place, near the base of the mount. Once this is out, the lens should unscrew. If you are still having problems, later today I will post an image.
  32. BrianS

    Leica Showcase Sankyo Kohki W-KOMURA 28mm f/3.5 in LTM

    What a fascinating Garden. That is a rare lens. Would be interesting to shoot it next to the Nikkor 2.8cm F3.5.
  33. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    Panasonic will shift development to the new full-frame L-Mount. Olympus is selling the Division and it appears that the Zuiko and Olympus names will be phased out from new models. Some u43 discussions on DPReview hope that Sigma will rescue the format by offering the Foveon sensor for the u43...
  34. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    Use a wide-angle lens on your camera and the high frequency content of the image will most likely increase, of course it is scene dependent- leave a lens cap on the camera, change in focal length will not affect frequency content. Most lenses are out-resolved using a Nikon D850. Down-sampling...
  35. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    https://www.panasonic.com/uk/consumer/cameras-camcorders/lumix-mirrorless-cameras/lumix-g-cameras/dc-g9.specs.html I'm looking at the G9 specs, usually the bits/pixel is given with the RAW format spec. It is not with this one. The reason why Anti-Aliasing filters are no longer needed with u43...
  36. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    That's an improvement- "about 1000x1200" resolution. It's what the Leica Q offered in 2016. I think 1600x1200, depending on Lag and Ghosting, would be enough to make me want a new camera with EVF. As it is, I bought the M8 and EP2 at about the same time. I've bought the M9, M Monochrom, and...
  37. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    I've been comparing specs on various mirrorless systems, wanted to catch up on current offerings from the various companies fr their electronic viewfinders. Panasonic offers a 5.76"Mdot" finder, compared with my 10 year old EVF-2. The latter is an 800x600 resolution finder, 800x600x3...
  38. BrianS

    Olympus Sells Imaging Division

    I've been reading the specs on newer Olympus Bodies, have not bought one since the EPM1. I bought the EP2 new, with EVF2, when it first came out. The EVF2 has 1.44mpixel (dots?) resolution (600x800), and is "okay". The newest electronic viewfinders from Olympus have 2.4mpixel (~768x1024)...
  39. BrianS

    B&W: Words/No Words

    https://cameraderie.org/threads/experiments-in-leica-m8-and-m9-conversions.38737/ Warning: the above thread may cause heads to explode, but explains converting images to linear DNG using FORTRAN.
  40. BrianS

    B&W: Words/No Words

    Black and White is just that: These days as everyone (almost) has color monitors, the RGB values of the displayed image are equal. Sepia and Monotone are different: the RGB values of the displayed image are different. Black and White is the subset of Monotone where the RGB values are all the...
  41. BrianS

    Olympus Sells Imaging Division

    Nikon did that. The Nikkorex and Nikkorex F. Nikon marketed the "Nikkor F" in Europe, as Nikon was to close to "Ikon" for a while. With JIP buying Olympus, "Jippee", "Jip-o-Matic", "Jip-o-Flex", "Auto-JIP". If I were the company buying this Olympus Division, it would give me the name rights or...
  42. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    This shot, taken some 8 years ago- sums up what I liked about the Olympus camera. It was small, and had a good build quality. I look at the D850 sized THING that Olympus has focused on, and wonder how they went wrong. The u43 sensor is 1/4th the size of a full-frame, 35mm sized sensor. A...
  43. BrianS

    It's been 10 good years but it's time to bid farewell.

    Thoughts and prayers are with you. Do what you have to do, know that you will be missed, and that you can always stop in - for whatever reason you want.
  44. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    I took the EPM1 with 17/2.8 on a Business trip to Huntsville. I made sure to have enough time for the Rocket Museum. Worked out well for me. Saturn V- no problem. The airline rules don't count a camera being worn as an "Item", but consider a field bag as a carry-on. So- EPM1, 17/2.8, Flash, in...
  45. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    In 2010- many people were buying u43 to use legacy lenses with a digital camera. A fixed-lens u43 would not have had the appeal. That is also when the prices of legacy lenses started moving upward. That was a big reason for me buying the EP2. I have the 17/2.8, came with a silver EP2. I also...
  46. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    I really like that lens. It's SO compact. Someday I'll fall into a lightly used Pen F going super-cheap. Maybe not as cheap as the NIB $120 EPL1 kit that I got when the EPL2 came out, but a good deal will come.
  47. BrianS

    Micro 4/3 Despite lust towards FF and DSLR dinosaurs, I'm just drifting towards m4/3...

    I bought into Olympus an u43 over 10 years ago. Back then- it had the cutting edge EVF, and couldtake almost every lens I had via an inexpensive adapter. The cameras were compact, about the same size of a Canonet QL17 GIII. I still have the EP2, an EP2 full-spectrum camera, and the EPM1. The...
  48. BrianS

    Leica Inexpensive Adapter, Nikon RF to Leica Thread Mount. ~$70.

    So- Not flare, but reflections. Problem solved in a few minutes. Now all I cannot figure out is why Zeiss made so few of these lenses. It's really nice. This one was under $100, did have some internal haze. That was another 10 minute job, done as soon as the lens was out of the box. This lens is...
  49. BrianS

    Leica Inexpensive Adapter, Nikon RF to Leica Thread Mount. ~$70.

    I found a design flaw in this adapter that was easily corrected. I used the adapter with a Nikkor 5cm F1.4 and a Zeiss 13.5cm F4 Sonnar: both of these lenses have rear elements far enough back in the lens for the problem to not manifest itself. This week, I picked up a Contax Mount Carl Zeiss...
  50. BrianS

    DSLR - Pentax?

    With the downturn in the photography industry, I would wonder how many new offerings Pentax will bring to the market. Nikon is suffering, but I suspect will be around longer than Pentax. Both have many lenses available. Pentax lenses tend to be smaller and lighter than a similar Nikkor, looking...
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