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, bellows extension factor is covered in Steve Simmons book Using the View Camera as well. He also covers filter factors for the various color filters as well as a Hutchings (as in Gordon Hutchings) filter factor in addition to the normal filter factors. It is an excellent book that covers the basics of view camera techniques. Joe -----Original Message----- >From: Bob Adler <rgacpa@yahoo.com> >Sent: Nov 25, 2008 12:51 PM >To: Leica Users Group <lug@leica-users.org> >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