Archived posting to the Leica Users Group, 2012/01/24
[Author Prev] [Author Next] [Thread Prev] [Thread Next] [Author Index] [Topic Index] [Home] [Search]I look forward to the results! On Tue, Jan 24, 2012 at 7:46 AM, Mark Rabiner <mark at rabinergroup.com> wrote: > I have been fascinated with this whole idea of focus blending and you know > me I often like things not blended but sometimes I do. > I'm glad to know the software (Helicon Focus) especially designed for such > a task. > Fascinating reading about this level of work which I don't normally > otherwise come across. > > This whole day is getting me to get my Gitzo carbon fiber tripod out and > going. > I've had it 3.5 years and only used it a few times. > It deserves better. And so do I. and I'm going watch my work transformed. > > -- > Mark R. > http://gallery.leica-users.org/v/lugalrabs/winterdays/ > > > > From: Bob Adler <rgacpa at gmail.com> > > Reply-To: Leica Users Group <lug at leica-users.org> > > Date: Tue, 24 Jan 2012 06:48:33 -0800 > > To: Leica Users Group <lug at leica-users.org> > > Subject: Re: [Leica] IMG: Pt. Lobos Saturday > > > > Hi Mark, > > > > Yes I do have tilts, but the technology today has some plusses and > minuses > > that I am trying a different approach to (this was very much an > > experimental image). > > > > Earlier testing proved to me that stopping down further than f16.6 caused > > the image to begin to break apart; significantly noticeable. So tilt can > be > > tricky for keeping items above and below the focal plane, is of limited > use > > (but not useless at all). Additionally, the Alpa cannot use tilt at focal > > lengths less than 80mm. I mistakenly put it was the 80 on the data, but > it > > was the 35 (still Schneider APO Digitar). There was a polarizer and > center > > filter attached. > > > > So for this image I used focus blending; each of the shots of the closest > > objects (about 1m away), had 3 exposures at ever increasing yet > overlapping > > focal points. Lets call those shots Row1, Scene Left, Exposures 1-3. Move > > the back over 13mm and take 3 different focus point shots and you have > > Row1, Scene Center, Exposures 1-3. The back can move over 13mm more and > > repeat. > > Do the same for the second row, which moves the back UP 13mm. Then for > the > > 3rd Row only 1 focal length is required (hyper focal works out from about > > 4m - the beginning of infinity). > > > > Then I used software (Helicon Focus) to blend the 3 different focus point > > images at each position into 1 (after adjusting the RAW file for its > > histogram and clarity). The final 9 files were stitched together with > CS5; > > layes to taste after that. > > > > So the experiment was successful as far as I'm concerned. That said, no > > moving objects allowed. But now I know it works and where it should be > > used. AND it was a heck of a lot of fun!! > > Best, > > Bob > > > > On Mon, Jan 23, 2012 at 11:34 PM, Mark Rabiner <mark at rabinergroup.com > >wrote: > > > >> Looks superb do you have tilts? > >> > >> -- > >> Mark R. > >> http://gallery.leica-users.org/v/lugalrabs/winterdays/ > >> > >> > >>> From: Bob Adler <rgacpa at gmail.com> > >>> Reply-To: Leica Users Group <lug at leica-users.org> > >>> Date: Mon, 23 Jan 2012 23:14:36 -0800 > >>> To: Leica Users Group <lug at leica-users.org> > >>> Subject: Re: [Leica] IMG: Pt. Lobos Saturday > >>> > >>> Well, lets just say more reasonably priced than the gear you have to > use > >> it > >>> with! Here's one shot this past summer with the same outfit. I use a > >> Leica > >>> laser distance meter to dial in the exact lens distance. The lens has a > >> high > >>> performance focus ring that is Alpa accurate: > >>> > >> > > http://www.rgaphoto.com/fleur/content/LillyCoy_MASTER_2011_10_Hawaii_CF003182 > >> > _ > >>> large.html > >>> Not sure if the laser turned the coy white... > >>> > >>> Bob Adler > >>> http://www.rgaphoto.com > >>> > >>> On Jan 23, 2012, at 10:58 PM, Mark Rabiner <mark at rabinergroup.com> > >> wrote: > >>> > >>>> The other interesting thing about this take no prisoners JSK optic is > >> the > >>>> bottom line. The price > >>>> $2,642.50 at B&H! > >>>> Does Leica even make a lens this cheap? > >>>> It's certainly worth it spending 40K getting into medium format > digital > >> as > >>>> after that the second to none glass is in effect FREE! > >>>> > >>>> -- > >>>> Mark R. > >>>> http://gallery.leica-users.org/v/lugalrabs/winterdays/ > >>>> > >>>> > >>>>> From: Bob Adler <rgacpa at gmail.com> > >>>>> Reply-To: Leica Users Group <lug at leica-users.org> > >>>>> Date: Mon, 23 Jan 2012 21:28:48 -0800 > >>>>> To: Leica Users Group <lug at leica-users.org> > >>>>> Subject: [Leica] IMG: Pt. Lobos Saturday > >>>>> > >>>>> I finally got to take off and do some shooting. There has been no > time > >>>>> since November and my digital back went in for a cleaning. First > >> outing in > >>>>> what seems like forever... > >>>>> There was a negative 1.1 foot tide at 3pm and it was a day between 2 > >>>>> fronts. Large wave warnings were issued for Carmel/Monterey beginning > >> at > >>>>> 4pm. They weren't kidding. Though a negative tide, the sea surge > really > >>>>> kept me from going out on the rocks. So I decided to enjoy the > exposed > >>>>> beach at Weston Beach and settled in for a series of images that I > >> focus > >>>>> blended and stitched. Rocks are really good for this kind of image! > >>>>> > >>>>> > >> > http://www.rgaphoto.com/2012PtLobos/content/WestonBeachPanoMASTER_large.html > >>>>> > >>>>> Here is a 100% crop of a small section of the image, way out in the > >> cove. > >>>>> I'm impressed with what is captured: > >>>>> > >>>>> > >> > http://www.rgaphoto.com/2012PtLobos/content/WestonBeachPano100pctCrop_large > >> . > >>>>> ht > >>>>> ml > >>>>> > >>>>> Earlier I noticed a view while having lunch. Went back after the > above > >> shot > >>>>> when the light began to get better: > >>>>> > >>>>> > >> > http://www.rgaphoto.com/2012PtLobos/content/Stairs_MASTER_2011_01_27_PtLobos > >>>>> _C > >>>>> F004104_large.html > >>>>> > >>>>> At the end of the day the waves really started to come in with the > >> tide; it > >>>>> was absolutely beautiful in its power. I tried to grab the feeling > >> here: > >>>>> > >>>>> > >> > http://www.rgaphoto.com/2012PtLobos/content/WaveBreak_MASTER_2011_01_27_PtLo > >>>>> bo > >>>>> s_CF004152_large.html > >>>>> > >>>>> Hope you enjoy. C&C always greatly appreciated. > >>>>> Bob > >>>>> > >>>>> > >>>>> > >>>>> > >>>>> -- > >>>>> Bob Adler > >>>>> Palo Alto, CA > >>>>> http://www.rgaphoto.com > >>>>> > >>>>> _______________________________________________ > >>>>> 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 > >>> > >>> _______________________________________________ > >>> 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 > >> > > > > > > > > -- > > Bob Adler > > Palo Alto, CA > > http://www.rgaphoto.com > > > > _______________________________________________ > > 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 > -- Bob Adler Palo Alto, CA http://www.rgaphoto.com