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March 27th, 2007, 06:13 PM
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#1 |
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Regular Crew
Join Date: Feb 2007
Location: Near Pittsburgh, PA
Posts: 112
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Depth of Field Question
I just started experimenting with my new canon gl2, can anyone give me any advice using the manual controls... I'm trying to get a shot with good depth of field, but when I use manual focus.. it's either blurry or it's not.. I wanted to do one of those shots, where and object upclose is in focus, and then the background comes into focus as the object goes out of focus, but i can't get it to work.. Any advice?
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March 27th, 2007, 09:01 PM
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#2 |
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Regular Crew
Join Date: Jul 2006
Location: Tampa, Florida
Posts: 261
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On 1/3 inch chip cameras its harder to do this then with 35mm. I can explain why if you want but for now I will just answer your question. Zoom in more and movie your camera back farther. Also watch your Fstop and make sure its as low as you can get it. Again if you want the scientific reason for this I will explain it, just request it.
Have fun. |
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March 28th, 2007, 02:53 AM
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#3 | |
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Old Boot
Join Date: Aug 2002
Location: London UK
Posts: 3,633
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Quote:
Actually, Jenna, you got it front to back. It is BAD or rather "short" depth of field you are after. This was something that tripped me up too! So with this short or narrow DoF you can do exactly what Alan says. And yes keep the iris WELL big!! Of course this means, in certain circumstances, that you will overexpose. So, you can either increase the shutter speed - less time for light to impinge on the chip/s thus reducing the overall exposure OR, better yet, use the internal Neutral Density filter. And if that aint dark enough you are starting to get into the realms of additional ND filters etc etc . .. Can you believe it, there once was a time that Hollywood would break its back to get EVERYTHING in focus, from near to afar? Ho hum . .. how things have changed. Hope this helps. - g |
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March 28th, 2007, 03:15 AM
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#4 |
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Old Boot
Join Date: Aug 2002
Location: London UK
Posts: 3,633
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. .and as if by magic!
I've attached 2 examples: Far and Near Focus. I've "thrown" the focus while capturing. It was a very VERY bright day. I could open up the iris completely; I slapped on extra NDs to bring back exposure within limits; I used a polariser to get that real neat saturation without all the OTHER light bouncing about and I think this demonstrates just what this small chip camera can do with "some" extras. Do I want a bigger chip camera? Ah, yes. . . . |
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March 28th, 2007, 03:22 AM
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#5 |
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Old Boot
Join Date: Aug 2002
Location: London UK
Posts: 3,633
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hmmm . . can't seem to get the DISTANT focus to load up here . .
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March 28th, 2007, 03:36 AM
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#6 |
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Old Boot
Join Date: Aug 2002
Location: London UK
Posts: 3,633
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Well! I have just deleted and then RE-uploaded the distant focus sample. But NOW I can't see the near focus example?
It is as if only one sample can be "seen" as an attachment and thus only THAT one viewed? I have checked and BOTH samples are uploaded. I can see this from within my "posting" advance DVInfo menu. However, both are stubbornly reluctant to display as attachments - you get either ONE or the OTHER! Chris! Help!!! - g |
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March 28th, 2007, 11:39 AM
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#8 | |
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Old Boot
Join Date: Aug 2002
Location: London UK
Posts: 3,633
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Quote:
Thank you Cole. I just hope they demonstrate what you can do with the setup I explained? As to attachments . .. WOW! - Now THAT is service!! I didn't see them before? What HAS Chris done here? Was that you Chris? - g |
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March 28th, 2007, 12:04 PM
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#9 |
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Inner Circle
Join Date: Jun 2003
Location: Bergen, Norway
Posts: 3,375
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Yes, I see both pictures too.
Very nice pictures, Graham! And they really demonstrate the focus changes. |
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March 28th, 2007, 09:00 PM
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#10 |
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Regular Crew
Join Date: Jul 2006
Location: Tampa, Florida
Posts: 261
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Yes I do believe the GL series has a 1/4 inch sensor. I am used to talking about my XL2 which has a 1/3 inch, but the same idea applies. Actually it will make it even harder to get this type of effect. You could always go out and blow 3000$ (or so) on a mini35 and spend more money on lenses.
Have Fun. |
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March 30th, 2007, 10:30 PM
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#11 |
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Inner Circle
Join Date: Jun 2005
Location: Saskatchewan
Posts: 3,048
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Grasie,
I got both pictures nicely. Great demonstration of depth of field for anyone who wants to know how to get that look. I always use both nds and a polizer, I really like the look. where did you find flowers in bloom like that this time of year??? We still have bits of snow about and threats of snow tonight!!! dale
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DATS ALL FOLKS Dale W. Guthormsen |
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March 31st, 2007, 12:16 AM
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#12 | |
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Old Boot
Join Date: Aug 2002
Location: London UK
Posts: 3,633
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Ah! That was in a previous high Summer!! LOL! The XM2 is a remarkable camera. But sometimes it needs a little assistance - extra NDs and Pola being part of the tool-set extension. |
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March 31st, 2007, 05:40 AM
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#13 |
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Major Player
Join Date: Jan 2006
Location: Carol Stream, IL
Posts: 541
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Very nice colors! Obviously, I need to work with my camera more...
And get a polarizer! Bob T.
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Bob T. |
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April 2nd, 2007, 05:01 PM
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#15 |
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Inner Circle
Join Date: Jan 2004
Location: Miami, FL
Posts: 2,933
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I never thought of using my polarizer indoors. Don't you need a lot of available light? Probably wouldn't work well for a wedding ceremony, eh?
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