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sctraffic

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Posts posted by sctraffic

  1. On 5/30/2020 at 12:55 PM, Trevor R said:

    On 29th May I tested on the GFX 50S various Medium Format lenses with the Pentacon Six mount, using the Hartblei P6 to GFX shift adapter, which allows shifts of up to 12mm in any direction.  All of these lenses were tested at f/11 with five shift positions:

     

    • Zero shift

       

    • Fully shifted up

       

    • Fully shifted down

       

    • Fully shifted left

       

    • Fully shifted right.

       

     

     

    30mm Arsat MC fish-eye lens (MC version of the Arsenal “Zodiak”)

     

    Excellent resolution and coverage at zero shift.  Vignetting at full shift and some chromatic aberrations visible near the edges.  Full shift up: top left-hand corner cut off.
    With the inevitable rectilinear distortion of a fish-eye lens, a far better option is to use the 28mm Schneider-Kreuznach 35mm “full frame” (24×36mm) PC-Super-Angulon lens (at zero shift), via the Hartblei M42 to GFX adapter.

     

    40mm Schneider-Kreuznach f/4 Curtagon in Exakta 66 mount

     

    Format coverage excellent, however slight resolution fall-off at left and right edges, even with zero shift.  Significant resolution loss at edges and 1 stop light loss at edges at full shift.

     

    40mm f/4 Bronica Zenzanon-S in Pentacon Six mount

     

    Coverage and resolution excellent at zero shift.

     

    At full shift, slight resolution fall-off very close to left and right edges.

     

    45mm Mir 69Б (Russian B) (with Kood UV filter in place)

     

    Fantastic resolution.

     

    TINY amount of chromatic aberration at edges.

     

    Very minor light fall of at edges on max shift (less than 1 stop)

     

    50mm f/4 Carl Zeiss Flektogon (no filter)

     

    SUPERB lens

     

    Immaculate resolution and cover including with maximum shift

     

    180mm f/2.8 Carl Zeiss Sonnar (no filter, no lens hood

     

    Fantastic cover and resolution, including at maximum shift

     

    TINY amount of chromatic aberration at edges

     

    45mm f/3.5 Hartblei PCS shift lens (optical elements from the Arsenal Mir 26Б)

     

    Zero shift: excellent resolution and coverage

     

    Not surprisingly, with full shift on the lens AND on the shift adapter (!!), the fall-off in resolution and exposure is unacceptable.

     

    However, this is not a realistic combination.  Better would be to use the Pentacon Six mount shift-only lenses on the Hartblei Pentacon Six to Fuji GFX Tilt adapter

     

    and the Pentacon Six mount tilt-only lenses on the Hartblei Pentacon Six to Fuji GFX Shift adapter, thus providing both shift and tilt capabilities for all of these lenses.

     

    With these combinations, the shift can be in one direction and the tilt in another, so any combinations of tilt and shift direction are possible.

     

    This creates the equivalent of the Hartblei 45mm Tilt-Shift Super Rotator lens, which is no longer available new.

     

    Thanks for your precious suggestion. I agree with this post.

  2. On 7/1/2021 at 1:35 AM, Gio.S. said:

    I have the same issue but I'm 100% sure it is not the camera nor its settings.

    For context. I have 3 Lenovo Thinkpad laptops. All three laptops have the same driver for the camera, all have the same Xwebcam2 application (used same installer).

    Of the three laptops, only the most recent one has this issue, regardless of USB port used.

    Using the Device Manager I can confirm all laptops see the same device, with the same device driver, but for the newer laptop, Xwebcam2 never sees the camera.

    Looking at the feed on my video conference call I see no error message (fuji displays slightly different images to show connections, battery or temp errors, but none here, picture below).

    Also, this is regardless of the vide conference sw. Old laptops work in zoom/teams, new laptop doesn't work in any (as the camera is never seen by the fuji sw).

    Might be some restrictions on windows (corporate/domain) that break this, but also looked at Windows Event manager and saw no errors related to the camera.

     

    image.png.6968d85f52e8c94483a6c20c274b7c7e.png

    image.png.27be330b37cc60285266c10343262488.png

    This is a helpful information for us. It has been describe very well about webcam, which is correct.

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