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  1. #1
    ccting's Avatar
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    Default What is T1.5 vDSLR lens

    For instance Samyang 85mm VDSLR T1.5 ?

    Are these kind of new lens suitable for photography, i can't find any info from google.. for this lens.

    ty

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    cdmicha's Avatar
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    Quote Originally Posted by ccting View Post
    i can't find any info from google.. for this lens.

    ty
    Check out this link.

    I found the information you are looking for at the first hit.
    Chris
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    If you Google "difference f-stop t-stop" you'll find plenty of pages which explain the difference.

    In short, f-stops are calculated based on the design of the lens. t-stops are measuring the actual light coming through the lens. So, any lens used at t-1.5 will transmit the same amount of light to the sensor, and thus achieve the same exposure for an image.
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    Quote Originally Posted by cdmicha View Post
    Check out this link.

    I found the information you are looking for at the first hit.
    Wow.. you are great. But the info in the link does not answer my doubt.. quite unuseful as they are more to marketing info. I need more in-depth review of the lens..

    Quote Originally Posted by IABoomer View Post
    If you Google "difference f-stop t-stop" you'll find plenty of pages which explain the difference.

    In short, f-stops are calculated based on the design of the lens. t-stops are measuring the actual light coming through the lens. So, any lens used at t-1.5 will transmit the same amount of light to the sensor, and thus achieve the same exposure for an image.
    Hmm.. Then what is the difference between T vDSLR lens with normal camera lenses that we have?? For instance t1.5 vs f/1.4 ?

    My Question is still unanswered.. : "Is this lens great for still-life photo shot?"? Ty
    Reason of asking: The t1.5 lenses looks extremely cheap..
    Last edited by ccting; 12-10-2012 at 08:27 AM.

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    RichardTaylor is online now dPS +1000 Club
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    It would be a great lens if you are happy wirth working with a manual lens.

    See the reviews here for a simiar lens:

    Samyang 85mm F1.4 Aspherical IF user reviews: Digital Photography Review

    I do not own it.

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    cdmicha's Avatar
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    Quote Originally Posted by ccting View Post
    Wow.. you are great. But the info in the link does not answer my doubt.. quite unuseful as they are more to marketing info. I need more in-depth review of the lens..

    Question 1: What is the Samyang T1.5 vDSLR lens?
    Answer (directly from the link): The Samyang 85mm T1.5 is a manual focus prime lens, this VDSLR (Video DSLR) version has been developed primarily for professional cine / movie making purposes.

    Question 2: Are they suitable for photography?
    Answer (directly from the link, next paragraph): The Samyang 85mm T1.5 is a manual focus prime lens, designed to give exceptional results at wide apertures. At T1.5 great images can be obtained, which is perfect for portraiture and low light shooting, particularly when mounted on a full frame DSLRs.

    Your questions were asking general information, and the link I gave you (first hit from google) provided the information you requested. If you were looking for a review of a specific lens, then you might have mentioned that, not asking what it was.
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    "What is T1.5 vDSLR lens"

    Not something you, ccting, should be concerning yourself with.
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    ccting's Avatar
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    Quote Originally Posted by RichardTaylor View Post
    It would be a great lens if you are happy wirth working with a manual lens.

    See the reviews here for a simiar lens:

    Samyang 85mm F1.4 Aspherical IF user reviews: Digital Photography Review

    I do not own it.
    many thanks to Richard..

    Quote Originally Posted by cdmicha View Post
    Question 1: What is the Samyang T1.5 vDSLR lens?
    Answer (directly from the link): The Samyang 85mm T1.5 is a manual focus prime lens, this VDSLR (Video DSLR) version has been developed primarily for professional cine / movie making purposes.

    Question 2: Are they suitable for photography?
    Answer (directly from the link, next paragraph): The Samyang 85mm T1.5 is a manual focus prime lens, designed to give exceptional results at wide apertures. At T1.5 great images can be obtained, which is perfect for portraiture and low light shooting, particularly when mounted on a full frame DSLRs.

    Your questions were asking general information, and the link I gave you (first hit from google) provided the information you requested. If you were looking for a review of a specific lens, then you might have mentioned that, not asking what it was.
    many thanks to cdmicha..

    Quote Originally Posted by OsmosisStudios View Post
    "What is T1.5 vDSLR lens"

    Not something you, ccting, should be concerning yourself with.
    I need a lens which is longer than 55mm where i have only 18-55mm and 35mm f/1.8g. With those short focal length, many situation where i can't go too near the subject.. Time to buy a cheap excellent lens.. and this T lens looks allien for me.. Thanks again..
    Last edited by ccting; 12-11-2012 at 04:19 AM.

  9. #9
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    Spend another $100 and get the Nikon f/1.8 lens (G or D) Or buy it used for less than the Samyang.

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