Recent content by BrianS

  1. BrianS

    Gear Porn

    5cm F2 Sonnar, Converted to Leica Mount by fiftyonepointsix, on Flickr Pre-war Sonnar, now Leica Mount.
  2. BrianS

    Leica KAF-18500 CCD used in the M9 and M Monochrom is discontinued, Sensor replacement no longer possible

    That sentiment is why I believe that the M9 and M Monochrom will go up in value- they are the last cameras of their type (full-frame CCD based) that will ever be made. The table for "sensor heat map" shows that CCD based sensors have salient features that are different from CMOS based sensors...
  3. BrianS

    Leica KAF-18500 CCD used in the M9 and M Monochrom is discontinued, Sensor replacement no longer possible

    The part number shown is for the sensor with the old cover glass, S-8612. The new cover glass is BG-55. I wonder if someone is buying the old CCD's and repairing them, like polish out the corrosion and apply a new protective layer. New Part Number from ONSEMI, kaf-18500-fxa-jh-aa-bg55 The...
  4. BrianS

    Leica KAF-18500 CCD used in the M9 and M Monochrom is discontinued, Sensor replacement no longer possible

    Prices will drop for cameras with the old CCD sensors in them, prices will go up for cameras with the new CCD sensors. The difference is the cover glass- which is cemented in place. There are shops that specialize in full-spectrum conversion. It would be worth contacting them. These shops take...
  5. BrianS

    Leica KAF-18500 CCD used in the M9 and M Monochrom is discontinued, Sensor replacement no longer possible

    My M9 went 7 years before the first signs of corrosion showed up. I had it replaced as soon as I found a first spot. This is a humidity driven problem- if you are in a dry area, it might last much longer. The Kodak DCS14 series used the same S8612 cover glass.
  6. BrianS

    Leica KAF-18500 CCD used in the M9 and M Monochrom is discontinued, Sensor replacement no longer possible

    For anyone that wants to compare CCD based sensors with CMOS based sensors- this table is interesting. CCD sensors do not have onchip signal processing, "what you capture is what you get". The CCD is an Analog device, digital conversion is done off-chip. Stored Raw images have very little...
  7. BrianS

    Leica KAF-18500 CCD used in the M9 and M Monochrom is discontinued, Sensor replacement no longer possible

    As per Leica Rumors- https://leicarumors.com/2020/08/07/leica-m9-ccd-sensors-have-been-discontinued-defective-sensors-can-no-longer-be-replaced.aspx/ This is no rumor- I've followed OnSemi, which bought out Kodak's CCD Division years ago. Last time I checked- almost all CCD products were gone...
  8. BrianS

    Nikon Severity of this Df viewfinder issue?

    If you looked through the viewfinder of your Leica at an off-angle like this, your pictures would be out of focus- especially when using the Tele-Elmarit 135/2.8 with goggles... I know this first hand!
  9. BrianS

    Nikon Severity of this Df viewfinder issue?

    I just checked my Df- what you show for the readout is exactly what I see in mine when looking through the viewfinder at an angle. I see the faint bottom line when taking off my glasses and looking through the viewfinder. And the visuals are very helpful.
  10. BrianS

    Leica Adding a "Gamma Curve" to a digital image: Thinking out Loud and Experiments

    https://www.photonstophotos.net/Charts/Sensor_Heatmaps.htm#mode=23,camera=Leica%20M10-R,suffix=14 I've made the statement in the past that the M Monochrom has the lowest non-uniformity of any sensor that I've used. The low-noise level is amazing. I've looked at the numbers using custom code...
  11. 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...
  12. 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.
  13. 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...
  14. 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...
  15. 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.
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