• jrv replied to the topic How do I know my new S2 is brand new? in the forum S2 8 years ago

    Pete Walentin;1349 wrote:
    Even it is somehow curious you do not know what kind of QC they are doing. I do not think that they have done 9k shutter releases to test if the camera is working properly. Maybe part of this is renaming of files as well.

    Putting on my “Retired Computer Systems Designer” hat for a moment…

    There are a lot…[Read more]

  • Remember that “ISO” is different in the digital world than with film. The sensitivity (“ISO”) of a digital sensor is what it is and cannot be changed; changing a digital camera’s ISO setting changes the readout strategy or “the way the lab processes the roll of film”.

    In both tests in David’s experiment the sensor had the same state when the…[Read more]

  • Sandisk, Panasonic and Delkin all have 64GB UHS-1 SD cards rated at ~ 95 MB/s reads. The Panasonic is rated at 45 MB/s writes, Sandisk and Delkin ~ 90 MB/s.

    Just how fast any of them really are I do not know

  • How does this differ from the existing S 35mm f/2.5? In what circumstances would I use one instead of the other?

  • David Farkas;1053 wrote:
    In SD, your best bet is a Class 10 SDHC card, but you’ll be limited to download speeds of only about 30-40MB/s to your computer. Here, I find CF to be much, much faster.

    SD cards with the UHS-1 spec should be as fast as the fastest CF cards, if the camera and card reader support UHS-1. Otherwise it will only do…[Read more]

  • The Markins Quickshoe has a useful safety feature:

    That’s a spring-loaded pin so that if you have a flat-bottom plate you can still use that shoe. But the Really Right Stuff L brackets and others have hollowed-out areas and the pin acts as a safety stop in case the shoe works a little loose…

    The RRS S2 L bracket has a problem…[Read more]

  • jrv replied to the topic S2 Images to iPad in the forum S2 8 years, 2 months ago

    How well does an Eye-fi work in an S2? Getting a radio link from it to anything else would seem to be a challenge.

    Perhaps mount the S2 in a bracket and the “Access Point” radio the Eye-fi talks to on top where a flash might be? That might allow you to hold the Access Point’s antenna at a particular angle to the Eye-fi so as to avoid all…[Read more]

  • David Farkas;472 wrote:
    When I run out of space, I just open up a new card, test it and go. The used cards get transferred to the computer, and then they get piled in a neat little stack. Seriously. Extra backup.

    What is the problem you’re addressing? This seems like a strategy to _maximize_ the likelihood of finding an SD card that…[Read more]

  • jrv replied to the topic 180mm Focus Test in the forum S Lenses 8 years, 4 months ago

    In that picture I think the focal point was just to the right of the “8”, at about the 18 1/4 point, maybe slightly (1/32) to the right of that.

    For future cameras that’s something for Leica’s suggestion box: provide more information at the time of shooting as to where the focus point is.

    More information recorded for later inspection…[Read more]

  • David Farkas;433 wrote: Just to play devil’s advocate, with smaller cards and more CF card changes, you are putting more wear and tear on the connector pins, both in the camera and in the cards. I doubt with normal use you’d ever see a failure, but statistically…..

    It’s not just the cycle wear on the connectors but also other risks such as…[Read more]

  • Thunderbolt is complex and *expensive* – those $50 cables may never get cheaper if there’s no way around active cables.

    Unfortunately Apple is reducing support for ExpressCard. If you do have an ExpressCard slot use an eSATA card and an eSATA drive. It’s well-proven technology, effective and cheap.

    USB has issues besides raw bandwidth.…[Read more]

  • Here’s another idea: an option to enable “card readability checks”.

    Every so often when the buffer is flushed and the card idle, read back the first few blocks from the most recent images written to the card. Potentially check many images in case the card has a large RAM buffer: we want to read from the flash cells.

    The idea is to…[Read more]

  • David Farkas;190 wrote: Okay, here is a big one I left off that I’ve written about before…

    Dr. Zimmer, head of digital R&D, explained that noise could be reduced by either dropping the sensor readout from 24Mhz to 12Mhz or by using a dual readout vs. a quad readout from the sensor.

    That’s surprising: why would dual vs. quad readout…[Read more]

  • Jeff Plomley;263 wrote: Possibly a menu item which allows the user to input an autofocus calibration offset, not unlike that offered by Nikon/Canon and others.

    I don’t want to have to figure out the offset and then input it to the camera: have the S2 figure it out.

    Create a suitable target for focusing and post it on Leica’s web site for…[Read more]