Search found 88 matches
- Tue Sep 12, 2017 3:16 pm
- Forum: Equipment Discussions
- Topic: Nikon D850 focus step size at 1:1 magnification
- Replies: 20
- Views: 7492
Re: Nikon D850 focus step size at 1:1 magnification
Dear Bill, Has this body an electronic shutter ? Yes, it does. However flash synch options are uncertain. Bill By my understanding, the camera is a DSLR with Mirror and Mechanical shutter. However, Nikon has enabled a fully-electronic shutter that operates only when the camera is in Live View mode....
- Tue Sep 12, 2017 11:43 am
- Forum: Equipment Discussions
- Topic: Nikon D850 focus step size at 1:1 magnification
- Replies: 20
- Views: 7492
Re: Nikon D850 focus step size at 1:1 magnification
Yes, it does. However flash synch options are uncertain.pierre wrote:Dear Bill,
Has this body an electronic shutter ?
Bill
- Tue Sep 12, 2017 11:40 am
- Forum: Equipment Discussions
- Topic: Alternatives to an Optical Breadboard?
- Replies: 17
- Views: 2517
William over at Wemacro has a really nice vertical stand for $100 that is hard to beat for convenience & cost. It's quite sturdy and takes up little space, and even comes with a coarse X&Y subject positioner. http://www.wemacro.com/?product=vertical-stand Best, Mike The price is attractive but ship...
- Mon Sep 11, 2017 9:29 am
- Forum: Equipment Discussions
- Topic: Nikon D850 focus step size at 1:1 magnification
- Replies: 20
- Views: 7492
Ray, According to the online D850 manual, page 212, it supports AF-S and AF-P lenses. Not sure if this means only Nikon lenses or 3rd party lens too. Best, Mike I interpret this to indicate that the microstep auto focus stacking is supported only with the AF-S and AF-P lenses which have a built in ...
- Mon Sep 11, 2017 5:58 am
- Forum: Equipment Discussions
- Topic: Nikon D850 focus step size at 1:1 magnification
- Replies: 20
- Views: 7492
Nikon D850 focus step size at 1:1 magnification
Leonard Sheppard was fortunate enough to obtain a Nikon D850 and performed a focus stack at a magnification of approximately 1:1 with the smallest step size of 1 with the 105 mm VR. He took 30 shots covering a distance of about 4 mm, giving a step size of 0.133 mm. According to Rik's DoF table, the ...
- Wed Aug 30, 2017 8:28 pm
- Forum: Equipment Discussions
- Topic: Nikon D850 Specs are Official
- Replies: 35
- Views: 4957
Bill, My note about manual exposure is that you don't need to read out the sensor to get the exposure, it's set manually. Thus you just use a long exposure and trigger the flash sometime during the long exposure, the key here is to let the flash be pretty much the only light that exposes the image....
- Wed Aug 30, 2017 4:22 pm
- Forum: Equipment Discussions
- Topic: Nikon D850 Specs are Official
- Replies: 35
- Views: 4957
Older Nikon SLR bodies with full electronic shutters, the D50, D70 etc, could sync flash up to 1/4000th sec. no problem. Robert As I recall the D70 was CCD with a global electronic shutter. As far as I know, global electronic shutters are not available in CMOS dSLRSs, although some high end CMOS mo...
- Wed Aug 30, 2017 3:17 pm
- Forum: Equipment Discussions
- Topic: Nikon D850 Specs are Official
- Replies: 35
- Views: 4957
Seems Nikon finally listened to some of the users and incorporated a few of those requests!! Will be interesting to see how the silent shutter and flash work together, soon we shall see :D Best, Mike I don't think that flash will work very well with the electronic shutter, since the readout time to...
- Wed Aug 30, 2017 8:52 am
- Forum: Equipment Discussions
- Topic: Nikon D850 Specs are Official
- Replies: 35
- Views: 4957
Seems Nikon finally listened to some of the users and incorporated a few of those requests!! Will be interesting to see how the silent shutter and flash work together, soon we shall see :D Best, Mike I don't think that flash will work very well with the electronic shutter, since the readout time to...
- Sat Aug 26, 2017 10:53 am
- Forum: General Discussion Forum and Community Announcements
- Topic: Is Nikon intending to abstract the esence of focus stacking?
- Replies: 83
- Views: 21873
It's not a camera issue, but no, ZS doesn't accept Raw. Helicon sort-of does, but wouldn't you prefer to use your favourite Raw >Tiff processing program? Stacking time in ZS depends on MP, not file size. My new fast-ish but not unusual PC should stack PMax at about 12-15 frames of 45MP per minute. ...
- Sun Jul 23, 2017 6:30 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Strange Artifact with DMAP
- Replies: 7
- Views: 2195
Very interesting! I was afraid it was something like that. I suggest touching base with the support people at Helicon. Perhaps they've seen it before. --Rik I will do that. The mis-ordering of the images was suggested by the observation that the artifact was present with DMAP but not PMAX. I would ...
- Sat Jul 22, 2017 5:58 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Strange Artifact with DMAP
- Replies: 7
- Views: 2195
OK, I took a detailed look at the 17-frame stack. Focus order there is quite weird. Starting in frame 001, focus moves up the target page in 002, stays almost unchanged in 003, moves down a hair in 004, then progressively up in frames 005 though 008. In img_009 it jumps down again, farther up in 01...
- Sat Jul 22, 2017 2:00 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Strange Artifact with DMAP
- Replies: 7
- Views: 2195
I cannot remember a problem like this ever being reported before. The EXIF data shows that this was shot with a Nikon D3 using 105 mm f/2.8 lens at f/5.6, with an exposure time of 1/125 second. Is that correct? If so, then I cannot think of any reason why there would be periodic defocusing of the i...
- Tue Jul 18, 2017 4:38 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: Strange Artifact with DMAP
- Replies: 7
- Views: 2195
Strange Artifact with DMAP
Today I was doing depth of field focus step to check for focus banding and noted a strange banding artifact with DMAP and also with Helicon using metohod 2 (depth map). After some experimenting I think I found the cause. The stack was takin under florescent illumination using magnetic ballast and li...
- Tue Jul 18, 2017 8:14 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Ant Face
- Replies: 8
- Views: 1205
Sharks, Your photos are wonderful and your setup is ingenious. Is the base of the system a metal breadboard or merely some type of plywood covered with a dark fabric. Thanks, Bill I use a carbon fiber covered wood cutting board. :) Thanks Much cheaper than a metal optical breadboard. The do it your...