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Pentax 50mm, f1.4 adapted to Canon dSLR, 5 images w/2 crops/ bandwidth alert.

ziggy53ziggy53 Super Moderators Posts: 23,799 moderator
edited January 4, 2007 in Landscapes
I finally got a lens shade/hood for this lens and my middle child, Whitney, asked me to go with her to Illinois State University for an Open House.

We got there early, and I had about 20 minutes for taking photos. I used the Pentax 50mm exclusively at f5.6 and using the focus confirmation chip on the adapter.

Just a few snaps. Overcast with no distinct shadows. ISO 800 because I was testing for sharpness.

82051204-D.jpg

82051266-D.jpg

82051298-D.jpg

82051322-D.jpg

82051370-D.jpg

And a couple of full-resolution crops:

82271260-D.jpg

82271271-D.jpg

Notes:

A very low contrast day, so moderate USM applied. Sharpness at f5.6 is very good to excellent across the frame. All shots outdoors were in focus, even though I relied on the focus confirmation instead of usual manual focus technique.

I am enough impressed that this lens has replaced the Canon 50mm, f1.8, MKII (plastic) in my standard kit.

Thanks,

ziggy53
ziggy53
Moderator of the Cameras and Accessories forums

Comments

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    Red BullRed Bull Registered Users Posts: 719 Major grins
    edited July 17, 2006
    Wow! That's pretty darn sharp. I might have to pick up one of these myself! (and an adapter)
    -Steven

    http://redbull.smugmug.com

    "Money can't buy happiness...But it can buy expensive posessions that make other people envious, and that feels just as good.":D

    Canon 20D, Canon 50 1.8 II, Canon 70-200 f/4L, Canon 17-40 f/4 L, Canon 100mm 2.8 Macro, Canon 430ex.
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    Manfr3dManfr3d Registered Users Posts: 2,008 Major grins
    edited July 18, 2006
    Looks like a real honey pot for sharpness fetichists! mwink.gif
    “To consult the rules of composition before making a picture is a little like consulting the law of gravitation before going for a walk.”
    ― Edward Weston
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    SewermanSewerman Registered Users Posts: 115 Major grins
    edited July 18, 2006
    adaptor
    Looks very sharp to me.
    What type of adapter did you use and which pentax lens did it fit
    Don't sweat the petty things and Don't pet the sweaty things!

    http://plumgraphics.net
    J D Plummer

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    erich6erich6 Registered Users Posts: 1,638 Major grins
    edited July 19, 2006
    Razor sharp! thumb.gif

    Erich
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    gusgus Registered Users Posts: 16,209 Major grins
    edited December 26, 2006
    Ziggy i have found this post from your redirect. I have a 30D...can i get an older canon or nikon to sit on the 30D at about 11 or 12 mm ?

    I sold my 10-22 canon & i have discovered that i miss the wide just too much & really just want a prime of about 12mm.

    Sorry to put you on the spot with an odd question but if anyone is going to know then its you.
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    ziggy53ziggy53 Super Moderators Posts: 23,799 moderator
    edited January 4, 2007
    gus wrote:
    Ziggy i have found this post from your redirect. I have a 30D...can i get an older canon or nikon to sit on the 30D at about 11 or 12 mm ?

    I sold my 10-22 canon & i have discovered that i miss the wide just too much & really just want a prime of about 12mm.

    Sorry to put you on the spot with an odd question but if anyone is going to know then its you.

    Gus,

    Sorry to take so long to reply,

    I am not aware of any prime rectilinear lenses for SLRs or dSLRs in the 12mm range. Nikon made some OK 15mm primes, Canon still makes a 14mm "L" lens (pricey).

    The Sigma 10-20mm, f4-5.6 EX DC, seems optimized for the wider end, so it might be more suitable for your applications.

    The other method, and the one I'm trying to make work, is to "stitch" multiple images together, to attain the same field of view as a single image provides. The primary advantage is that you can attain more detail, effectively more resolution, which I believe is essential in a vista landscape. It's not easy to do, and I'm still experimenting with the methods available.

    This is basically the same approach Max Lyons is using, with spectacular results:

    http://www.tawbaware.com/maxlyons/gigapixel.htm
    http://www.tawbaware.com/maxlyons/index.html

    ziggy53
    ziggy53
    Moderator of the Cameras and Accessories forums
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    USAIRUSAIR Registered Users Posts: 2,646 Major grins
    edited January 4, 2007
    Sewerman wrote:
    Looks very sharp to me.
    What type of adapter did you use and which pentax lens did it fit
    ear.gif

    Fred
    http://www.riverbendphotos.com/
    http://www.facebook.com/Riverbendphotos
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    ziggy53ziggy53 Super Moderators Posts: 23,799 moderator
    edited January 4, 2007
    Sewerman wrote:
    Looks very sharp to me.
    What type of adapter did you use and which pentax lens did it fit

    Yes Fred, I missed another one. headscratch.gifrolleyes

    The lens is a Pentax screwmount, 50mm, f1.4, SMC.

    The adapter is an Adorama screwmount/M42 to EOS.

    http://www.adorama.com/CZPUEOS.html?searchinfo=m42%20adapter%20eos&item_no=21

    The adapter had a focus confirmation chip attached, per this thread:

    http://www.dgrin.com/showthread.php?t=35188

    ziggy53
    ziggy53
    Moderator of the Cameras and Accessories forums
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