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Forum: Photographic Technique
05-09-2011, 08:07 PM
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Whoops. I was housecleaning my old attachments and I dropped that one too. I've reattached the original version plus the English Measurements only version I use currently (added 645D sensor specs).
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Forum: Photographic Technique
04-20-2009, 03:24 PM
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Lowell, correct me if I'm wrong but you'd need to have the full sensor specs in order to do those resolution calculations "accurately"? You would need the actual size of each pixel as simple resolution (pixel count) wouldn't quite get you there. I'm also not sure how to relate that to the film columns.
Not sure what you're asking for here. The FRAME SIZE row tells you how big a subject will fit in your frame at a given distance, and the IMAGE SCALE tells gives you the ratio of image to FOV - but it seems you're after something different?
Ron, you will have to submit requisition form BA-1100-N in triplicate to the Department of Redundancy Dept. for that information; you'll need to have a valid ID-10T card as well.
And thanks :)
You're most welcome, Herman!
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Forum: Photographic Technique
04-18-2009, 08:38 PM
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:) I have toyed with the idea of making it into an AdobeAIR app. I think to go and learn yet another programming tech would require some motivation by people requesting it. hehe
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Forum: Photographic Technique
03-25-2009, 10:50 PM
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I'm glad you're all finding it useful.
I made one final addition to include the physical dimensions of your field of view at a given distance (e.g. if you have a 100mm lens on the K20D at 10ft your framed shot encompass an area 2.35ft by 1.57ft). If you don't care about that there's no need to download the new version. And I promise, no more patches/upgrades unless somebody finds a bug. :)
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Forum: Photographic Technique
03-25-2009, 09:56 AM
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Okay, Metric version added and that pesky hyperfocal bug fixed. 1st post has the zip. Enjoy (again)!
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Forum: Photographic Technique
03-25-2009, 09:10 AM
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Thanks for the kudos! HOWEVER - I've got a bug. :mad:
In putting together the "metric" version I noticed my numbers didn't jive. Turns out the problem is in the Engrish part of the sheet for the hyperfocal calculation. I'm workin on my math issues now and will post a corrected version with both english and metric measurements later today.
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Forum: Photographic Technique
03-24-2009, 09:48 PM
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You're welcome!
It was fun to build. Got to brush up on my algebra and trigonometry a bit. (See kids they do teach ya that stuff for a reason afterall)
I uploaded a new version of the spreadsheet.
Added:
- Logic for subject distance past hyperfocal distance
- DOF spread infront and behind subject distance
- THREE NEW CAMERAS! :lol: gotta add cameras and/or lenses when you upgrade photo software, right?
The attachment link in the original post has the updated version.
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Forum: Photographic Technique
03-24-2009, 02:07 PM
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One of the constant themes running through the forums is how lenses behave in the various formats of digital and film cameras.
So, whilst chained to my desk babysitting machines that go ping I put together a little Excel spreadsheet that should help folks visualize the differences. By entering your lens' focal length, aperture and distance to subject you can quickly see:
- Hyperfocal distance
- Depth of Field, with near/far distances
- Field of View
- Angle of View
- Compare results between APS-C, 35mm, 6x4.5, 6x7 & 8x10 formats.
DISCLAIMER: This spreadsheet is intended for entertainment use only. The formulas and constants/assumptions are what I have gleaned from various internet sources with varying levels of credibility. If you pick a keyboard fight using the data herein and get your internet butt handed to you by someone with better skilz you have my sympathy, but that's all. :)
The XLS file in Excel 97 format is attached. Enjoy and happy number crunching.
EDIT: Re-attached original version + english only I currently use.
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