Is this a macro
Jan 25, 2015 11:41:08 #
I think the marble might be a close up but when I delve into the marble or the beach glass are they macro photos. The beach glass is about 1 inch by maybe 1.5 inches. The marble is just a regular marble.
Thank you for any information.
mariak
Thank you for any information.
mariak
Jan 25, 2015 12:51:26 #
mariak wrote:
exif will travel if you select download when you post..... Not sure why exif did not travel, maybe when I saved for web that stripped it out. Will just resize next time....
Jan 25, 2015 13:25:01 #
oldtigger wrote:
I am sorry, I thought I did select download. Thank you.exif will travel if you select download when you post.
Jan 25, 2015 13:37:06 #
oldtigger wrote:
It doesn't look like the exif is there. It's not coming up for me anyway.:|exif will travel if you select download when you post.
Jan 25, 2015 13:37:34 #
mariak wrote:
It appears you did:wink:I am sorry, I thought I did select download. Thank you.
Jan 25, 2015 15:34:59 #
Your Pentax K-3 camera has an APS-C sensor size of 23.5 x 15.6mm (http://www.us.ricoh-imaging.com/dslr/K-3#!product-specs ). At Minimum Focusing Distance, your Pentax DA 35mm f/2.8 Macro Limited Lens (http://www.pentaxforums.com/lensreviews/SMC-Pentax-DA-35mm-F2.8-Limited-Macro-Lens.html ) will capture true macro. Only you know if your lens was set to MFD. What is the diameter of your marble? I speculate that image #3 is a macro, but image #2 is a close-up photograph.
Jan 25, 2015 16:01:24 #
Nikonian72 wrote:
I just measured a standard marble at 15mm diameter, so image #3 appears to easily be 1:1+. I'm not certain about the beach glass since we have nothing to reference but, I suspect it's 1:1.What is the diameter of your marble? I speculate that image #3 is a macro, but image #2 is a close-up photograph.
You beat me to shooting marbles. I just acquired a few to do just very thing.
I really like your images:thumbup:
Jan 25, 2015 16:11:04 #
Flyextreme wrote:
Thank you, I am having a great deal of fun with these marbles. I had some acrylic ice cubes to sit the marbles on that reflects the light through and up into the marble.I just measured a standard marble @ 15mm so, they appear to easily be 1:1+. I'm not certain about the beach glass since we have nothing to reference but, I suspect it's 1:1. I really like your images:thumbup:
Jan 25, 2015 16:13:48 #
Nikonian72 wrote:
Thank you, I will try some close up filters later today to see if I can get more of the inside to be sharper.Your Pentax K-3 camera has an APS-C sensor size of 23.5 x 15.6mm (http://www.us.ricoh-imaging.com/dslr/K-3#!product-specs ). At Minimum Focusing Distance, your Pentax DA 35mm f/2.8 Macro Limited Lens (http://www.pentaxforums.com/lensreviews/SMC-Pentax-DA-35mm-F2.8-Limited-Macro-Lens.html ) will capture true macro. Only you know if your lens was set to MFD. What is the diameter of your marble? I speculate that image #3 is a macro, but image #2 is a close-up photograph.
Jan 25, 2015 16:47:21 #
mariak wrote:
I suspect your "close up" filters may loose resolution depending on which ones you have, Thank you, I will try some close up filters later today to see if I can get more of the inside to be sharper.
Never the less, I would love to see the results :wink:
Jan 25, 2015 18:27:19 #
Flyextreme wrote:
That's what I want to check out, as it is I am right up on the glass so I don't know if they are of any use at all.I suspect your "close up" filters may loose resolution depending on which ones you have. Never the less, I would love to see the results.
Jan 25, 2015 18:42:00 #
mariak wrote:
according to slrgear.com:That's what I want to check out, as it is I am right up on the glass so I don't know if they are of any use at all.
"the 35mm Macro is a true macro lens with a full 1:1 magnification ratio and a minimum focus distance of 5.47 in. (13.9cm)."
what do you mean when you say you are right up on the glass?
Jan 25, 2015 18:52:00 #
oldtigger wrote:
Minimum FOCUSING Distance is measured from sensor to subject; Minimum WORKING Distance is measured from lens front element to subject. A 35-mm macro lens has a MWD of 2-inches.according to slrgear.com: "the 35mm Macro is a true macro lens with a full 1:1 magnification ratio and a minimum focus distance of 5.47 in. (13.9cm)."
what do you mean when you say you are right up on the glass?
what do you mean when you say you are right up on the glass?
Jan 25, 2015 19:08:15 #
Nikonian72 wrote:
so with a full 2" of working distance the OP could probably slip a short extension tube in there, still have room left over, and not have to degrade with a lens.Minimum FOCUSING Distance is measured from sensor to subject; Minimum WORKING Distance is measured from lens front element to subject. A 35-mm macro lens has a MWD of 2-inches.
Jan 25, 2015 19:14:00 #
oldtigger wrote:
Illuminating a subject with only 2-inches MWD is already difficult, and much more difficult when shortened with extension tubes or an add-on diopter lens.so with a full 2" of working distance the OP could probably slip a short extension tube in there, still have room left over, and not have to degrade with a lens.
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