Playing with OOF

Lightroom conversion test

I noticed that it’s more or less impossible to get correct focus at more then one ring at a time (at f7.1) – so I took three shots and combined them in PS.. :)  It’s really late too, I should go to bed. hmm.. This is a Lightroom 3 conversion of SD15 file, not bad – but not as good as from SPP.

I’m pretty much set now with my setup – this last shot had no changes, no painting except taking away a little dust – although getting the background WHITE is time consuming when there is so much blur to deal with. The foremost black corners will also be a little bit less black – one white foam infront of camera is missing.

About Carl Rytterfalk

Welcome to my blog! I'm Carl Rytterfalk, a swedish photographer who loves everything that is interesting in the world of photography. In 2002 I fell in love with the three layered Foveon sensor and has since then been an addicted user of Sigma cameras. Though I use Canon and Nikon as well. :)
This entry was posted in 105mm, Adobe Lightroom, Flash, ISO50, Sigma SD15, Studio and tagged , , , . Bookmark the permalink.

9 Responses to Playing with OOF

  1. @cristian says:

    I think with tilt shift lenses you can get focus on all at the same time.

  2. Jens Flachmann says:

    PhotoAcute could help to simplify the depth of field expansion / focus stacking process (photoacute dot com), but the text staying unreadable would then become problematic or must be done manually in photoshop.
    I only have the standard version, but it works with X3F-files from SD15 if you have camera raw 6.1 installed, and exports the resulting file as a DNG-raw (with watermark because of my standard version). Maybe it’s worth a try.

  3. Have you considered trying a lens adapter to use Non-Sigma lenses in order to explore tilt-shift possiblities?

  4. Hi Christoph. Yes, many times. However before putting my money on something more or less unknown on ebay I need to try – none close to me has had anything yet for me to test.

  5. Random says:

    Hey C,
    This might help. One common thing I do for product shots is “focus stacking.” It’s like shooting an HDR image but instead you shoot many photos with various focal points and then combine them. There is software and examples floating around if you do a google search. Set the camera up exactly where you want it and make sure it does NOT move. Same thing for your item you are shooting. Adjust focus as needed on item you are shooting, I find that writing down the order I focused on the item in helps when you do PP. Once you combine the images in the software/PS you end up with an object that is perfectly in focus from front to back.

    Or as others have mentioned, rent the 90mm TS lens from Canon w/ and extension tube.

    Also if you want to get rid of the shadows directly under the rings consider shooting on a light table with semi-trasparent plexi glass. Or add some additional bounce flash from above the item (off the ceiling), you will have to adjust it to where the light fall-off is perfect, you may need to scrim it. Hope that helps.

  6. Hi Random,

    Thanks for your help, the focus everywhere thing is what I don’t want. :D As it will show the text inside the ring – but for the shot above it would of course partly help so that I would get all three rings diamonds easily in focus.

    The other thing with the light table etc.. I’m actually considering trying something like that, it’s a little bit annoying with those shadows and I prefer to create them myself in post. I will try to use something transparent above the white surface and see if it works. Not sure I can get a flash to work inside with my current setup.

    The Canon TS will have to be remounted for Sigma – but sure. That might well be the solution. :)

  7. Anonymous says:

    Carl Rytterfalk: Hi Random,Thanks for your help, the focus everywhere thing is what I don’t want. :D As it will show the text inside the ring – but for the shot above it would of course partly help so that I would get all three rings diamonds easily in focus.

    – I see, I think you have done an excellent job then, very finished look in the last version you posted. As long as the client is happy… :)

    The other thing with the light table etc.. I’m actually considering trying something like that, it’s a little bit annoying with those shadows and I prefer to create them myself in post. I will try to use something transparent above the white surface and see if it works. Not sure I can get a flash to work inside with my current setup.

    -Its just like bouncing through an umbrella, only to remove unwanted shadows. Light table is the easiest solution. You can even build your own, just make sure to use color corrected bulbs.

    The Canon TS will have to be remounted for Sigma – but sure. That might well be the solution. :)  

    -Just remount the extension tube! Then you can use the lens on Canon bodies all you want. It’s already a MF lens so nothing will change. You can get a used 1.4x Canon tube on Ebay for less than $100.

  8. spalbird says:

    By going OOF the backside of the ring becomes fatter and I don’t like that… The picture here really looks like using three different pictures and assembling them in PS…

    A cheap T&S would be a lensbaby. Or you can reproduce the effect with photoshop and a lot of work and skills
    http://www.smashingmagazine.com/2008/11/16/beautiful-examples-of-tilt-shift-photography/

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