Archived posting to the Leica Users Group, 2008/11/25
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]Bob, Calumet makes a calculator for extension factors that does not require thought, if you can get the target placed right: http://www.calumetphoto.com/item/CC9201/ Also I have reciprocity failure charts for Tmax 100 and TriX and maybe some others if you would like to have them. Ken > -----Original Message----- > From: lug-bounces+kcarney1=cox.net@leica-users.org [mailto:lug- > bounces+kcarney1=cox.net@leica-users.org] On Behalf Of Bob Adler > Sent: Tuesday, November 25, 2008 2:51 PM > To: Leica Users Group > Subject: Re: [Leica] Macro photography, 5x4 style. > > Thanks Mark. Very helpful! I'll look for the book?today. > Do you have a chart or methodology for calculating extension > factors??Perhaps the Dykinga book has that or, if not, any direction you > could provide would be appreciated. > Again, thanks for taking the time to explain. > Best, > Bob > ?Bob Adler > Palo Alto, CA > rgacpa@yahoo.com > http://www.raflexions.com > > > > > ________________________________ > From: Mark Pope <mark.teampope@ntlworld.com> > To: Leica Users Group <lug@leica-users.org> > Sent: Tuesday, November 25, 2008 12:07:34 PM > Subject: Re: [Leica] Macro photography, 5x4 style. > > Hi Bob, > > thanks very much your comments.? I really do appreciate them. > I used a tiny amount of front tilt to get the roses in the same plane of > focus.? For the second, there was a little swing too. > I used an aperture of f22 in both shots. > Exposure-wise, I had to factor in the lens extension into the equation, > plus the filter factor.? I used an incident light meter reading, with a > base exposure of 1/2 sec at f22.? Once the filter and lens extension > factors were included, plus an allowance for reciprocity failure, the > exposure was about 5s at f22. > Hope that helps. > > For some truly inspirational LF work plus instruction on how to use a > 4x5, I strongly recommend "Large Format Nature Photography" by Jack > Dykinga. > > Enjoy the 4x5 system! > > All the best > > Mark. > > Bob Adler wrote: > > Mark, > > Really lovely images. Thanks for posting. > > I just bought a 4x5 system and was curious about how you made your > exposures. For the first image do you remember what movements you used in > setting up for the first image and why you used them? What f-stop did you > use? Any info you could provide would be much appreciated. > > Again, lovely, > > Bob > >? Bob Adler > > Palo Alto, CA > > rgacpa@yahoo.com > > http://www.raflexions.com > > > > > > > > > > ________________________________ > > From: Mark Pope <mark.teampope@ntlworld.com> > > To: Leica Users Group <lug@leica-users.org> > > Sent: Tuesday, November 25, 2008 11:21:10 AM > > Subject: [Leica] Macro photography, 5x4 style. > > > > Yesterday, I had the day off work and felt the need to do some film > > photography.? The choice was between the M6TTL and Shen Hao.? Today, the > > Shen-Hao won... > > These are some red roses I bought for Karin... > > > > Technically, both are macro shots as they are both greater than 1/3 > > lifesize. > > > > 90mm Grandagon, red filter, HP5 plus EI200, Perceptol 1+2, 12 min 24 deg > C. > > > > http://www.monomagic.co.uk/gallery.php?gallery=largeformat&image=rose- > 2.jpg > > > > 150mm APO Sironar N, red filter, HP5 plus EI200, Perceptol 1+2, 12 min > > 24 deg > > > > http://www.monomagic.co.uk/gallery.php?gallery=largeformat&image=rose- > 1.jpg > > > > Two hours went by very quickly...and I took four sheets of film. > > > > The resulting A3 prints are very pleasing (well I think so...) > > > > > > C&C welcome. > > > > -- > > > > Mark Pope, > Swindon, Wilts > UK > > Homepage? ? ? ? ? ? ? http://www.monomagic.co.uk > Blog? ? ? ? ? ? ? ? ? http://www.monomagic.co.uk/blog > Picture a week (2008) > http://www.monomagic.co.uk/index.php?gallery=paw/2008 > ? ? ? ? ? ? ? (2007) > http://www.monomagic.co.uk/index.php?gallery=paw/2007 > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information > > > > > > _______________________________________________ > Leica Users Group. > See http://leica-users.org/mailman/listinfo/lug for more information