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Pentax K-3 Mark III Monochrome DSLR

Maoby
April 12, 2023
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    Maoby
    Members 1600 posts
    April 12, 2023, 11:05 p.m. April 12, 2023, 11:05 p.m.
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    What do you think of this new Pentax Monochrome?

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    Foskito
    Members 284 posts
    April 12, 2023, 11:09 p.m. April 12, 2023, 11:09 p.m.
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    I think is cool, but after using an M monochrome along with my M9P taking the exact same pictures... IMHO I rather have a color sensor and the chance to work on Lightroom for the ocassional black and white image!

    Satyaa, PentUp and jmkubler like this.

    favorite 3

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    TheDavinator
    Members 621 posts
    April 12, 2023, 11:09 p.m. April 12, 2023, 11:09 p.m.
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    I thought the press release isn’t until tomorrow. There was a leak…but is it real? I hope so.

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    Maoby
    Members 1600 posts
    April 12, 2023, 11:16 p.m. April 12, 2023, 11:16 p.m.
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    @Foskito has written:

    I think is cool, but after using an M monochrome along with my M9P taking the exact same pictures... IMHO I rather have a color sensor and the chance to work on Lightroom for the ocassional black and white image!

    You didn't see any benefit to using the Monochrome version
    Personally, I've never had the opportunity to test a Monochrome version.

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    Maoby
    Members 1600 posts
    April 12, 2023, 11:17 p.m. April 12, 2023, 11:17 p.m.
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    I'm sure 😎

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    TheDavinator
    Members 621 posts
    April 12, 2023, 11:18 p.m. April 12, 2023, 11:18 p.m.
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    I just saw the announcement…so it looks genuine. I’ve played with Leica mono vs color converted to mono. I prefer the quality of the real mono versions.

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    Foskito
    Members 284 posts
    April 12, 2023, 11:22 p.m. April 12, 2023, 11:22 p.m.
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    I read it at Petapixel, our trusty news outlet 😂

    I mean files look great, personally I wouldn't invest that amount of money on one.

    Allan Schaller takes amazing images with his monochrome Leicas I highly recommend him:

    instagram.com/alan_schaller?igshid=YmMyMTA2M2Y=

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    TheDavinator
    Members 621 posts
    April 12, 2023, 11:22 p.m. April 12, 2023, 11:22 p.m.
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    @Foskito has written:

    I read it at Petapixel, our trusty news outlet 😂

    I read it at…gulp…DPReview

    PentUp and Foskito like this.

    favorite 2

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    SrMi
    Members 457 posts
    April 12, 2023, 11:24 p.m. April 12, 2023, 11:24 p.m.
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    Fantastic news!

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    Foskito
    Members 284 posts
    April 12, 2023, 11:27 p.m. April 12, 2023, 11:27 p.m.
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    @TheDavinator,

    Ok... the truth is I read it there too (first) 😂😂😂😂

    TheDavinator likes this.

    favorite 1

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    ConfusedMalvern
    Members 6 posts
    April 13, 2023, 12:41 a.m. April 13, 2023, 12:41 a.m.
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    Interesting user review www.youtube.com/watch?v=KQ5LtayQrpo

    In summary, he loved using the camera but in terms of the final image, didn't feel the monochrome sensor provided significant benefits over converting a colour image to B+W

    Satyaa and PentUp like this.

    favorite 2

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    SrMi
    Members 457 posts
    April 13, 2023, 2:25 p.m. April 13, 2023, 2:25 p.m.
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    @ConfusedMalvern has written:

    Interesting user review www.youtube.com/watch?v=KQ5LtayQrpo

    In summary, he loved using the camera but in terms of the final image, didn't feel the monochrome sensor provided significant benefits over converting a colour image to B+W

    On the other hand, he wants B&W in the Ricoh GR III :). He said it would be great to have it for the low-light capabilities.
    For those that care, the increased resolution of a monochrome sensor can matter (e.g., for landscape shots). Samuel did not analyze the details.

    P.S.: I read it first on DPRevived (email notification).

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    JohnSheehyRev
    Members 550 posts
    April 13, 2023, 2:54 p.m. April 13, 2023, 2:54 p.m.
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    @Foskito has written:

    I think is cool, but after using an M monochrome along with my M9P taking the exact same pictures... IMHO I rather have a color sensor and the chance to work on Lightroom for the ocassional black and white image!

    That's certainly more flexible, but there is something very natural and wholesome about having all the pixels have the same response to light. The extreme case would be shooting in a room lit by narrow-band 650nm red LEDs. You will capture about 10x-15x more light with a monochrome sensor than with a typical Bayer sensor, with the same Av and Tv values. You will also have none of the egregious "nearly-point-sampled" aliasing that you would get with 3/4 of the pixels nearly blind to red light, especially with no AA filter and/or larger pixels. The downside is that there is no potential to change "color filtration" after the fact with a single exposure from a monochrome sensor.

    IanSForsyth, SquadShooters, Terryk1 and 1 other user like this.

    favorite 4

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    Foskito
    Members 284 posts
    April 13, 2023, 4:18 p.m. April 13, 2023, 4:18 p.m.
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    I think this is an interesting video about the Pentax K3M, with findings on par with mine when I use the Leica MM:

    youtu.be/KQ5LtayQrpo

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    SquadShooters
    Members 125 posts
    April 16, 2023, 12:16 p.m. April 16, 2023, 12:16 p.m.
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    @Foskito has written:

    I think this is an interesting video about the Pentax K3M, with findings on par with mine when I use the Leica MM:

    youtu.be/KQ5LtayQrpo

    The exact same video was shared three posts above ;-)

    It looks like there are not enough thorough reviews out there (yet!?). What I would be interested in is the difference in image quality on a more solid foundation (not just opinion), and some answers to questions like how much can you increase ISO until you run into IQ troubles (opinion, but something which Leica did right while introducing their Monochrom edition).

    Currently it looks like a mixed bag to me. Maybe the APS-C format is just too small for this use case.

    But, daaamn, it certainly looks sexy with that black finish.

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    TheDavinator
    Members 621 posts
    April 16, 2023, 2:26 p.m. April 16, 2023, 2:26 p.m.
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    I’m sure the standard findings will apply regardless of being APSC …better noise, higher resolution.

    JohnSheehyRev likes this.

    favorite 1

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    SquadShooters
    Members 125 posts
    April 16, 2023, 2:37 p.m. April 16, 2023, 2:37 p.m.
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    @TheDavinator has written:

    I’m sure the standard findings will apply regardless of being APSC …better noise, higher resolution.

    Sure, but the devil is in the details, practicable ISO limit, when do concentrical circles appear when pushing shadows, and do they appear at all, …? This is the stuff I’m interested in.

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    JohnSheehyRev
    Members 550 posts
    April 16, 2023, 2:44 p.m. April 16, 2023, 2:44 p.m.
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    @TheDavinator has written:

    I’m sure the standard findings will apply regardless of being APSC …better noise, higher resolution.

    In standard lighting and subject colors, a monochrome APS-C sensor can easily get as many photoelectrons with the same exposure as with a color FF sensor. It can get even more when the light or subject matter is highly colored. An extreme example is a room lit by 650nm red LEDs; a monochrome APS-C can get 4x to 6x the total charge of a color FF sensor with the same exposure. A CFA discards about 65% of red light in the red pixels, and 95%+ in the blue and green pixels. CFAs are extremely inefficient.

    Just because the base ISO does not go up much in the monochrome version of a sensor, there is no reason to assume that efficiency only goes up that much, because a CFA capture is typically weak in one or more color channels for any given subject matter and lighting.

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    SrMi
    Members 457 posts
    April 16, 2023, 3:06 p.m. April 16, 2023, 3:06 p.m.
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    @SquadShooters has written:
    @Foskito has written:

    I think this is an interesting video about the Pentax K3M, with findings on par with mine when I use the Leica MM:

    youtu.be/KQ5LtayQrpo

    The exact same video was shared three posts above ;-)

    It looks like there are not enough thorough reviews out there (yet!?). What I would be interested in is the difference in image quality on a more solid foundation (not just opinion), and some answers to questions like how much can you increase ISO until you run into IQ troubles (opinion, but something which Leica did right while introducing their Monochrom edition).

    Currently it looks like a mixed bag to me. Maybe the APS-C format is just too small for this use case.

    But, daaamn, it certainly looks sexy with that black finish.

    I you search outside DPRevived, you will find many more reviews. I hope that Sean Reid will run a detailed analysis at some point. At the moment, he is busy publishing his Leica M11 Monochrom findings.

    TheDavinator likes this.

    favorite 1

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    barondla
    Members 331 posts
    April 25, 2023, 9:26 p.m. April 25, 2023, 9:26 p.m.
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    Monochrome gives more resolution and lower noise on same size sensor. How would the Monochrome stack up vs the color 645Z?
    The stock Z already has more resolution and less noise than APS-c sensors. I have the 645Z and lenses and numerous K mount optics. Would a K-3 Monochrome compete with a stock Z for landscape and still life photography?
    Thanks,
    barondla

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    Satyaa
    Members 106 posts
    May 28, 2023, 1:40 a.m. May 28, 2023, 1:40 a.m.
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    @ConfusedMalvern has written:

    Interesting user review www.youtube.com/watch?v=KQ5LtayQrpo

    In summary, he loved using the camera but in terms of the final image, didn't feel the monochrome sensor provided significant benefits over converting a colour image to B+W

    I liked the review.

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