Re: Unusual effect and PESO - What do we have for dinner tonight?
Some people eat blue cheese, some - blue birds, and some others - blue meet. :-) Igor Tue Dec 6 12:52:10 EST 2011 knarftheriault at gmail.com wrote: You eat blue beef? cheers, frank ps: can't really comment about the sharpness (or lack thereof) as it looks plenty sharp on my phone... --- Original Message --- From: Igor Roshchin str at komkon.org Sent: December 5, 2011 12/5/11 To: PDML at pdml.net Subject: Unusual effect and PESO - What do we have for dinner tonight? I was cooking some beef yesterday in the stove. When I took it out, I spent some time trying to get the picture. Unfortunately, it didn't come out as sharp as I wanted. http://42graphy.org/misc/_IR33616.jpg The interesting part is that the droplets were hanging down, below the pot cover, and on the photto they appear sticking up. In relation to this shooting I have a question. I was using K-7 with the DFA-100/2.8 Macro, on a Tiltall tripod. I am trying to figure out what was the reason for the lack of sharpness (even in the area where it is focused). Risking the meet cooling off, I tried with the shake-reduction switched on and off, I tried to close down the aperture - up to 5.6 and 6.something (the exposure time went up to about half a second), I tried to use the 2-second delay release, but nothing of that seemed to help. Any other thoughts? Do you think the mirror can produce some shake? Would it be better to do it with the locked up mirror? Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Unusual effect and PESO - What do we have for dinner tonight?
On 07/12/2011 4:00 PM, Igor Roshchin wrote: Some people eat blue cheese, some - blue birds, and some others - blue meet. :-) Spoo, the other blue meat. -- William Robb -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Unusual effect and PESO - What do we have for dinner tonight?
Mon Dec 5 22:04:53 EST 2011 Christine Nielsen wrote: Do you think steam could be a factor? Fogging your lens, or even just wisps of vapor in the foreground...? I see a few spots where the texture of the drops changes to a softer, lighter appearance, which made me think of that possibility... I don't think so. It was not steamy at that point, as it was seating in the oven for a few hours after that was switched off. It's probably just the curvature of the pot cover (and hence different distance, resulting in the softer image). Mon Dec 5 14:57:54 EST 2011 Bob Sullivan wrote: Igor, Charles is right and f5.6 isn't much of a stop down for Macro. Mirror shake can be there, but the depth of field is the real issue. I am concerned that nothing is really sharp. At least something should've been sharp. Try a flash (or two) and a smaller aperture. The effect here was from the ambient source of light. That's why I didn't want to use the flash. You're trying to photograph a pretty wide field. Regards, Bob S. On Mon, Dec 5, 2011 at 12:19 PM, Charles Robinson charlesr at visi.com wrote: If you pick the 2-second-delay, it will automatically disable the SR. Thanks, I didn't know that. For macro work - 5.6 isn't really stopped down much. Go to the extremes and f/8, f/11. OK. (Actually, the shot I showed was done at f/7.1) Ghm.. I previously have done some macro shots at about f/4 +/- ... and they were sharper.. As for this particular image, I find it to be too small to evaluate sharpness/focus. What were you focusing on? Here is a fragment that is in the area of focus, - with the actual pixel size. (Beware: 2M file) http://42graphy.org/misc/_IR33616-area.jpg I was trying to focus on the smallest bubbles approximately in the middle of this area. Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
RE: Unusual effect and PESO - What do we have for dinner tonight?
You eat blue beef? cheers, frank ps: can't really comment about the sharpness (or lack thereof) as it looks plenty sharp on my phone... --- Original Message --- From: Igor Roshchin s...@komkon.org Sent: December 5, 2011 12/5/11 To: PDML@pdml.net Subject: Unusual effect and PESO - What do we have for dinner tonight? I was cooking some beef yesterday in the stove. When I took it out, I spent some time trying to get the picture. Unfortunately, it didn't come out as sharp as I wanted. http://42graphy.org/misc/_IR33616.jpg The interesting part is that the droplets were hanging down, below the pot cover, and on the photto they appear sticking up. In relation to this shooting I have a question. I was using K-7 with the DFA-100/2.8 Macro, on a Tiltall tripod. I am trying to figure out what was the reason for the lack of sharpness (even in the area where it is focused). Risking the meet cooling off, I tried with the shake-reduction switched on and off, I tried to close down the aperture - up to 5.6 and 6.something (the exposure time went up to about half a second), I tried to use the 2-second delay release, but nothing of that seemed to help. Any other thoughts? Do you think the mirror can produce some shake? Would it be better to do it with the locked up mirror? Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Unusual effect and PESO - What do we have for dinner tonight?
On Dec 5, 2011, at 11:52, Igor Roshchin wrote: Risking the meet cooling off, I tried with the shake-reduction switched on and off, I tried to close down the aperture - up to 5.6 and 6.something (the exposure time went up to about half a second), I tried to use the 2-second delay release, but nothing of that seemed to help. Any other thoughts? Do you think the mirror can produce some shake? Would it be better to do it with the locked up mirror? If you pick the 2-second-delay, it will automatically disable the SR. For macro work - 5.6 isn't really stopped down much. Go to the extremes and f/8, f/11. (as long as your subject isn't in motion, of course!) As for this particular image, I find it to be too small to evaluate sharpness/focus. What were you focusing on? -Charles -- Charles Robinson - charl...@visi.com Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Unusual effect and PESO - What do we have for dinner tonight?
Igor, Charles is right and f5.6 isn't much of a stop down for Macro. Mirror shake can be there, but the depth of field is the real issue. Try a flash (or two) and a smaller aperture. You're trying to photograph a pretty wide field. Regards, Bob S. On Mon, Dec 5, 2011 at 12:19 PM, Charles Robinson charl...@visi.com wrote: On Dec 5, 2011, at 11:52, Igor Roshchin wrote: Risking the meet cooling off, I tried with the shake-reduction switched on and off, I tried to close down the aperture - up to 5.6 and 6.something (the exposure time went up to about half a second), I tried to use the 2-second delay release, but nothing of that seemed to help. Any other thoughts? Do you think the mirror can produce some shake? Would it be better to do it with the locked up mirror? If you pick the 2-second-delay, it will automatically disable the SR. For macro work - 5.6 isn't really stopped down much. Go to the extremes and f/8, f/11. (as long as your subject isn't in motion, of course!) As for this particular image, I find it to be too small to evaluate sharpness/focus. What were you focusing on? -Charles -- Charles Robinson - charl...@visi.com Minneapolis, MN http://charles.robinsontwins.org http://www.facebook.com/charles.robinson -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
Re: Unusual effect and PESO - What do we have for dinner tonight?
Do you think steam could be a factor? Fogging your lens, or even just wisps of vapor in the foreground...? I see a few spots where the texture of the drops changes to a softer, lighter appearance, which made me think of that possibility... -c On Mon, Dec 5, 2011 at 12:52 PM, Igor Roshchin s...@komkon.org wrote: I was cooking some beef yesterday in the stove. When I took it out, I spent some time trying to get the picture. Unfortunately, it didn't come out as sharp as I wanted. http://42graphy.org/misc/_IR33616.jpg The interesting part is that the droplets were hanging down, below the pot cover, and on the photto they appear sticking up. In relation to this shooting I have a question. I was using K-7 with the DFA-100/2.8 Macro, on a Tiltall tripod. I am trying to figure out what was the reason for the lack of sharpness (even in the area where it is focused). Risking the meet cooling off, I tried with the shake-reduction switched on and off, I tried to close down the aperture - up to 5.6 and 6.something (the exposure time went up to about half a second), I tried to use the 2-second delay release, but nothing of that seemed to help. Any other thoughts? Do you think the mirror can produce some shake? Would it be better to do it with the locked up mirror? Igor -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions. -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
