Though I was able to convince myself the D800 would yield a better macro image than the D7100 I still felt my 7100 could do better.
Towards this end I developed a set of overlap/exposure level tables which yield much improved D7100 results.
However I also found the defective link in my setup. I have met the enemy and he is me.
When I used the 800, I used multiple speedlights at 1/160 sec or a speed light and led panels at ¼ sec. Good results. When I switched to the 7100 I used panels and weak speed light at ½ sec. Fair results.
When I evaluated the 7100 I used continuous LED at 2-4 sec. Lousy results.
Some jack-leg newbie only had 250 ms delay between shutter trip and camera re-position in his configuration file for the Cognisys rail.
The camera was moving before the shutter closed.
Bottom line: When used properly, the D7100 is capable of great highly detailed macro shots using a rail.
example of D7100 using continuous illumination for a 2:1 macro stack of about 20 frames,
Spider spinneretts
what aperture are you using?
Here is a stack of 14 images with my D7100 using f/5.6
fstop22 wrote:
what aperture are you using?
true aperture f7, effective f10, step 30ym, 1/3-second.
Tried shooting at true 5.6 but you could see it was getting soft.
Getting from one side to the other on your flower would take me easily 1200 frames even without allowance for the distance to the stem.
oldtigger wrote:
Though I was able to convince myself the D800 would yield a better macro image than the D7100 I still felt my 7100 could do better.
Some jack-leg newbie only had 250 ms delay between shutter trip and camera re-position in his configuration file for the Cognisys rail.
The camera was moving before the shutter closed.
Bottom line: When used properly, the D7100 is capable of great highly detailed macro shots using a rail.
Pixel density of the two cameras is very close so I wouldnt expect that much difference. The big advantage of the D800 would be capturing a larger subject. I typically set my delay to 4 or 5 second to give the rail time to settle. Takes a bit longer but no vibration worries. Good details on your photo Ron.
Starting to see used D800 and D800e's showing up in the camera shops. Oh so tempting
. ;-)
A-PeeR wrote:
Pixel density of the two cameras is very close so I wouldnt expect that much difference. The big advantage of the D800 would be capturing a larger subject. I typically set my delay to 4 or 5 second to give the rail time to settle. Takes a bit longer but no vibration worries. Good details on your photo Ron......Starting to see used D800 and D800e's showing up in the camera shops. Oh so tempting
. ;-)
The spider was shot with the 7100 after i corrected my rail configuration.
it wasn't the settle time after moving, or the delay to write the frame to memory, it was the time between shutter fire and camera move.
oldtigger wrote:
it wasn't the settle time after moving, or the delay to write the frame to memory, , it was the time between shutter fire and camera move.
That is funny! Can't say I've done that one yet.... Probably won't now that you mentioned it...
A-PeeR wrote:
That is funny! Can't say I've done that one yet.... Probably won't now that you mentioned it...
I like the focus stacking with auto-focus.
;-)
So I'll tell one on myself: I had been doing some Auto Exposure Bracketing that I intended to process as HDRs. The next time out (shooting macros), I couldn't figure out why my exposures were consistently off. Yeah, I forgot to reset to "0" from the number of bracketed exposures.
Series of head slaps.... :oops: :oops:
Come on A-PeeR, surely you have a gotcha to confess to...
oldtigger wrote:
Come on A-PeeR, surely you have a gotcha to confess to...
I have had more than I can count... Trying to think of one that is funny and not an example of flat out ignorance ;-) My initial thinking that I would do macro on the cheap is hilarious!
LoneRangeFinder wrote:
Here is a stack of 14 images with my D7100 using f/5.6
I am new to Macro, what stack or stiching program did you use?
dpullum wrote:
I am new to Macro, what stack or stiching program did you use?
I use Helicon Focus, but I think everyone else on here uses Zerene Stacker. Both are good programs, and I was actually able to talk with the programmers of each. At the time I purchased, Zerene was not available for Macs and Helicon would accept raw files. Maybe that has changed.
I already have too much redundancy so I'll just stick with Helicon.
I have stitched using Helicon-- but I don't have one of those Nodal thingies, so I tried a DIY that was really too crude for what I wanted.
F/stop22 does some fine work using Zerene. Bottom line is I think both are great programs.
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