Assignment #7: DOF that bench!

2

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  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 17, 2006
    Bayer,
    Bayer-Z28 wrote:
    Headed advice... I'll try again.. back in a bit.
    No, no, not back - forward. You need to be closer to the bench. Like 3 ft top, maybe less.
    Bayer-Z28 wrote:
    This is exciting!... I'm learning! I was using the camera wrong this whole time.
    No worries, you're not alone. We're all learning, in one way or another...mwink.gif

    Good luck!
    "May the f/stop be with you!"
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  • Bayer-Z28Bayer-Z28 Hobby Photog Posts: 392Registered Users Major grins
    edited September 17, 2006
    Yeah ^ I had to get REALLY close! They came out GREAT too!! wings.gif

    Thanx for the help! Really! This site is great! Can't wait to try something else... *looks up old assignments*
    Auto enthusiast. I drive a 2000 Camaro Z28. LOADED w/ mods.

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  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 17, 2006
    Bayer,
    Bayer-Z28 wrote:
    HA! I got ! I got it! YEah!...clap.gifivar
    Now you got it! thumb.gif
    "May the f/stop be with you!"
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  • ruttrutt Cave canem! Posts: 6,511Registered Users Major grins
    edited September 17, 2006
    Well, it isn't exactly a bench. And I didn't exactly follow the rules and take two shots. But I went out to shoot this assignment and had a ton of fun shooting with my 50mm at f/1.4 as close as I could get to things. So this assignment resulted in (among other things) ... DOF Dog:

    96043468-L.jpg

    [Sorry, guys if this is just too off topic. It really wouldn't have happened without Nik's assignment.]
    If not now, when?
  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 19, 2006
    Larry,
    Please check the forum FAQ, images are not showing :-(
    "May the f/stop be with you!"
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  • larry llarry l peregrino Posts: 25Registered Users Big grins
    edited September 19, 2006
    Nikolai wrote:
    Please check the forum FAQ, images are not showing :-(

    I can't get the links to show so I took it down for now. I'll mess with it tonight after work.

    LL
  • larry llarry l peregrino Posts: 25Registered Users Big grins
    edited September 19, 2006
    bench of a different color
    96304999-M.jpg

    96305009-M.jpg

    First shot at f/2.8, 1/40; second shot f/22, 1.6; both shots from tripod, KM 5D, Sigma 105 mm

    Hope they show up this time.
  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 19, 2006
    Cool bench!
    larry l wrote:
    First shot at f/2.8, 1/40; second shot f/22, 1.6; both shots from tripod, KM 5D, Sigma 105 mm
    Hope they show up this time.

    And cool DOF! thumb.gif
    Yes, they do show..:-) clap.gif
    "May the f/stop be with you!"
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  • BlueHoseJacketBlueHoseJacket Major grins Posts: 507Registered Users Major grins
    edited September 21, 2006
    DOF Bench
    Larry beat me to the punch yesterday...I thought about shooting my Black & Decker Workmate on the way home from work yesterday. I go to the computer and open Dgrin and Larry posted his workbench..good idea Larry>
    Here is my B & D Workmate...I hope I did this right I am just learning how to use this DSLR.
    1. f/4, ISO 100, 43mm, Av
    96826611-L.jpg

    F/10, ISO 100, Focal length 43mm, Av
    96826626-L.jpg


    welcome C & C
  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 21, 2006
    B.h.j,
    Thank you for the entries! thumb.gif
    It looks like your second one, f/10, suffers from a hand-hold blur.
    To avoid that, you need either more light, or higher ISO, or a tripod rolleyes1.gif
    "May the f/stop be with you!"
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  • BlueHoseJacketBlueHoseJacket Major grins Posts: 507Registered Users Major grins
    edited September 21, 2006
    Yep..
    I left the tripod at my-in-laws out of state so these were both handheld shots. My question is "is this the right concept for the technique? Was I to only adjust the apertue? I adjust apeture and my focal point..after re-reading the directions, I think I should have had a tripod...focused on one spot and then adjusted my aperture. Does that sound right?
    Nikolai wrote:
    Thank you for the entries! thumb.gif
    It looks like your second one, f/10, suffers from a hand-hold blur.
    To avoid that, you need either more light, or higher ISO, or a tripod rolleyes1.gif
  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 21, 2006
    Yes, it was
    I left the tripod at my-in-laws out of state so these were both handheld shots. My question is "is this the right concept for the technique? Was I to only adjust the apertue? I adjust apeture and my focal point..after re-reading the directions, I think I should have had a tripod...focused on one spot and then adjusted my aperture. Does that sound right?

    What you could have done also to avoid blur is to crank ISO a bit. Since ISO/shutter speed do not affect the DOF *at all*, it's OK to adjust them. You'll get maybe a slightly noisier shot, but not by far.

    Other than that, yes, your techniques was precisely what was required - focus the camera to the same point and take two shots, one with min aperture, and another with the max one.

    Hope to see more from you, if you have time:-)
    "May the f/stop be with you!"
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  • SwartzySwartzy Right Brained Scientist Posts: 3,293Registered Users Major grins
    edited September 22, 2006
    The Blue Bench Sequil
    Sorry, I couldn't resist putting a tilt to this as I haven't seen things the same since the last class....heh...nevermind

    28mm f/3.5 1/1000 sec

    97029742-L.jpg

    28mm f/18 1/40 sec.

    97029743-L.jpg
    Swartzy:
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  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 22, 2006
    Swartzy,
    Swartzy wrote:
    Sorry, I couldn't resist putting a tilt to this as I haven't seen things the same since the last class....heh...nevermind
    28mm f/3.5 1/1000 sec
    28mm f/18 1/40 sec.

    Thanks!
    "May the f/stop be with you!"
    Star*Explorer: on Dgrin, home; Master Class: open;
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  • LiquidAirLiquidAir Major grins Posts: 1,751Registered Users Major grins
    edited September 23, 2006
    I just received my 50mm f/1.4 from BH Photo and this assignment looked like a perfect test case for it. The perfect lens for dramatic differences in DoF is wide and fast. 50mm is as wide as I go in fast lenses (on my full frame 5D it is, of course, it is wider than it would be on a 1.6 crop body), so here we go:

    Shallow DoF (f/1.6)

    97260383-L.jpg

    Deep DoF (f/22)
    97259528-L.jpg

    The focus point in both images is the leaf at the far end of the near bench which is about 10 feet away. The hyperfocal distance for 50mm at f/22 is around 15 feet and as a result as you can see the trees in the far field are still somewhat out of focus in the stopped down image. When looking close up (not visible at this scale) the whole image at f/22 is somewhat soft presumably due to diffraction.

    I learned a few other things about my Canon 50mm f/1.4 while studying these shots. The lens is very soft at f/1.4 but sharpens up quite quickly as you stop down and is very crisp by f/2.0. The lens also vignettes significanly when wide open. I corrected both these images with DxO Optics which cleans up the vignetting quite nicely. DxO Optics also signficantly improves the sharpness at f/1.6 and f/1.8 but still leaves the images lacking somewhat for contrast (most noticably at f/1.6). In practice I will try to avoid using the 50mm at apetures wider than f/2.0 and consider opening to f/1.4 only as a desparation measure.
  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 23, 2006
    Hey, L.A.
    LiquidAir wrote:
    I just received my 50mm f/1.4 from BH Photo and this assignment looked like a perfect test case for it. The perfect lens for dramatic differences in DoF is wide and fast. 50mm is as wide as I go in fast lenses (on my full frame 5D it is, of course, it is wider than it would be on a 1.6 crop body), so here we go:

    Shallow DoF (f/1.6)

    Deep DoF (f/22)

    The focus point in both images is the leaf at the far end of the near bench which is about 10 feet away. The hyperfocal distance for 50mm at f/22 is around 15 feet and as a result as you can see the trees in the far field are still somewhat out of focus in the stopped down image. When looking close up (not visible at this scale) the whole image at f/22 is somewhat soft presumably due to diffraction.

    I learned a few other things about my Canon 50mm f/1.4 while studying these shots. The lens is very soft at f/1.4 but sharpens up quite quickly as you stop down and is very crisp by f/2.0. The lens also vignettes significanly when wide open. I corrected both these images with DxO Optics which cleans up the vignetting quite nicely. DxO Optics also signficantly improves the sharpness at f/1.6 and f/1.8 but still leaves the images lacking somewhat for contrast (most noticably at f/1.6). In practice I will try to avoid using the 50mm at apetures wider than f/2.0 and consider opening to f/1.4 only as a desparation measure.

    (I like your initials, matches my place:-) :D

    Congrats on a (great!) new lens and a nice entry! thumb.gif

    It's awesome that you get to know your new toy and realize its cons and pros for yourself (and the rest of us). :):

    I also think the difference between the shots would be more dramatic is you had got closer to the bench and focused on its nearer end rather than farther one, don't you agree? headscratch.gif

    Cheers! 1drink.gif
    "May the f/stop be with you!"
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  • botanistbotanist Plant killer Posts: 112Registered Users Major grins
    edited September 25, 2006
    I happened to find a shot I liked that was just a plain old bench, so I thought I'd post it up. :):

    Sorry I couldn't go up to f/22...it was raining and I was w/o tripod. ne_nau.gif I thought f/8 still did a good job of distinguishing the DOF though. thumb.gif

    35mm f/2 (focal point should be obvious :):)
    97904081-L.jpg

    35mm f/8
    97903831-L.jpg
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  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 25, 2006
    Botanist,
    botanist wrote:
    I happened to find a shot I liked that was just a plain old bench, so I thought I'd post it up. :):

    Sorry I couldn't go up to f/22...it was raining and I was w/o tripod. ne_nau.gif I thought f/8 still did a good job of distinguishing the DOF though. thumb.gif

    35mm f/2 (focal point should be obvious :):)
    35mm f/8

    Thank you for the entry! Nice rose! thumb.gif
    Now, do you think you can speed it up? mwink.gif
    "May the f/stop be with you!"
    Star*Explorer: on Dgrin, home; Master Class: open;
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  • botanistbotanist Plant killer Posts: 112Registered Users Major grins
    edited September 25, 2006
    Nikolai wrote:
    Thank you for the entry! Nice rose! thumb.gif
    Now, do you think you can speed it up? mwink.gif

    rolleyes1.gif

    yes my apologies...I run several sites myself on top of the 9-5 programming I do...sometimes I can't get to these threads w/ the quickness I once had. mwink.gif
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  • LiquidAirLiquidAir Major grins Posts: 1,751Registered Users Major grins
    edited September 26, 2006
    Nikolai wrote:
    Congrats on a (great!) new lens and a nice entry! thumb.gif

    It's awesome that you get to know your new toy and realize its cons and pros for yourself (and the rest of us). :):
    Thanks. I was quite happy to see my results with the 50 match the review I read of the lens before I bought it.
    Nikolai wrote:
    I also think the difference between the shots would be more dramatic is you had got closer to the bench and focused on its nearer end rather than farther one, don't you agree? headscratch.gif

    I gave that a shot and it is definitely an improvement over the orginal shots. However, I did have to slightly cheat on the rules and push the focus point out bit at f/22 to sharpen up the background. Both of these shots are manually focused.

    f/1.8
    98015358-L.jpg
    f/22
    98020578-L.jpg


    I then spent some time playing with other approaches to the scene. This pair were shot at 200mm and do a better job of capturing the essence of what drew me to those benches in the first place. Getting this much DoF with a 200mm proved challenging. The 200mm stops down to f/32 which helped but I still ended up taking a series at slightly different focus distances and picking the best compromise.

    f/2.8
    98022747-L.jpg
    f/32
    98025661-L.jpg
  • GranitGranit Big grins Posts: 86Registered Users Big grins
    edited September 26, 2006
    botanist wrote:
    rolleyes1.gif

    yes my apologies...I run several sites myself on top of the 9-5 programming I do...sometimes I can't get to these threads w/ the quickness I once had. mwink.gif

    He is not saying that you are slow...
    He is directing you towards the new assignment...on Shutter Speed...

    :lol:
  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited September 26, 2006
    Very nice retake, LA!
    LiquidAir wrote:
    Thanks. I was quite happy to see my results with the 50 match the review I read of the lens before I bought it.
    ...
    Great job on the assignment! thumb.gif
    "May the f/stop be with you!"
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  • pyroPrints.compyroPrints.com photohunter Posts: 1,383Registered Users Major grins
    edited March 20, 2007
    More catch up, shot this while shooting LPS#2

    Camera: Olympus Evolt E500
    Lens: Olympus 50mm f/2.0 Telephoto Macro ED Lens

    F2.0 1/640 sec (god I love this fast lense, it' not always useful but man it's nice when you need it)
    lowDOF.jpg

    F22 1/5 sec
    highDOF.jpg
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  • com3com3 4theriders.com Posts: 423Registered Users Major grins
    edited March 21, 2007
    Nikolai wrote:
    However, my point is: in this particular class we want to change the aperture, not the focal distance.


    i didn't exactly understand either until i read this post right here. i'll go hunt down a bench... :D
  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited March 21, 2007
    Pyro,
    More catch up, shot this while shooting LPS#2

    Camera: Olympus Evolt E500
    Lens: Olympus 50mm f/2.0 Telephoto Macro ED Lens

    F2.0 1/640 sec (god I love this fast lense, it' not always useful but man it's nice when you need it)

    F22 1/5 sec

    Nice DOF work! thumb.gif

    Just in case you're looking for a bw treatment for the LPS... I think this image could benefit from a more agressive b/w, since the current one looks a bit flat (to me, that is). HTH iloveyou.gif
    "May the f/stop be with you!"
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  • pyroPrints.compyroPrints.com photohunter Posts: 1,383Registered Users Major grins
    edited March 21, 2007
    Nikolai wrote:
    Nice DOF work! thumb.gif

    Just in case you're looking for a bw treatment for the LPS... I think this image could benefit from a more agressive b/w, since the current one looks a bit flat (to me, that is). HTH iloveyou.gif

    I'm always looking for more aggressive treatments, so feel free to expound on that =c) In fact there is a picture of somebody's dirty hand that I sometimes see in the ehader, that I would love to find out the way the PP was done.
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  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited March 21, 2007
    Pyro,
    I'm always looking for more aggressive treatments, so feel free to expound on that =c) In fact there is a picture of somebody's dirty hand that I sometimes see in the ehader, that I would love to find out the way the PP was done.

    That was Shakey, winner of the "Dirty" challenge.
    http://dgrin.smugmug.com/gallery/167709/1/45468231/Large

    You know you can click on those header thumbs and explore the whole gallery, don't you? :-) mwink.gif
    "May the f/stop be with you!"
    Star*Explorer: on Dgrin, home; Master Class: open;
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  • pyroPrints.compyroPrints.com photohunter Posts: 1,383Registered Users Major grins
    edited March 21, 2007
    Nikolai wrote:
    That was Shakey, winner of the "Dirty" challenge.
    http://dgrin.smugmug.com/gallery/167709/1/45468231/Large

    You know you can click on those header thumbs and explore the whole gallery, don't you? :-) mwink.gif

    Well now I know. Any insight on how he achieved that look?
    pyroPrints.com (my little t-shirt shop)
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  • NikolaiNikolai Darth SLR Posts: 19,033Registered Users Major grins
    edited March 21, 2007
    Pyro,
    Well now I know. Any insight on how he achieved that look?

    Why don't you just ask him? mwink.gif

    If I remember correctly, we were all high on Draganizer at the time, so it's very likely he used that action. Google for it or search dgrin or dpreview.

    HTH
    "May the f/stop be with you!"
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  • spb13spb13 Major grins Posts: 133Registered Users Major grins
    edited March 17, 2008
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