Search found 1436 matches
- Fri Mar 16, 2012 7:22 am
- Forum: Technical and Studio Photography -- Macro and Close-up
- Topic: Chrysodema Aurofoveata.
- Replies: 5
- Views: 1575
My impression of it as image is that it is either too much or not enough :) If you isolated a single leg that would good, if you showed the body including perhaps the head and eye then that is good. As it stands I find it somewhat cluttered as an image - but that is my taste :) Is that the sort of f...
- Sun Mar 11, 2012 3:50 am
- Forum: Equipment Discussions
- Topic: Stackshot Rail
- Replies: 12
- Views: 4346
... Best info I have is that it's a matter of convenience for changing lenses and magnifications without having to move the base of the rail. --Rik Pretty much what I said :) The nice thing about writing your own control software is that you can have things like a button called "RETRACT TO PARK", d...
- Sat Mar 10, 2012 1:51 am
- Forum: Equipment Discussions
- Topic: Stackshot Rail
- Replies: 12
- Views: 4346
Look at it from a different angle - why did they start selling an extended rail ? Hmmm, maybe because a lot of customers felt limited by the standard length ? Most of the rails I use only have a movement of about 50mm - much more than I need for a typical stack but I often find myself hankering for ...
- Thu Feb 23, 2012 2:59 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: shooting through water? (was: image stacking and stitching?)
- Replies: 70
- Views: 29586
- Wed Feb 22, 2012 10:07 am
- Forum: Equipment Discussions
- Topic: DIY: Focus Steper
- Replies: 31
- Views: 18818
I think you might be going a bit overboard on your isolators / relays etc. You can pretty much isolate and control everything from a uP just using a optoisolator - they are very fast and decouple everything. Just stick a suitable resistor on the outlet pin from your uP and connect that to the opto d...
- Tue Feb 21, 2012 1:40 pm
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: First light
- Replies: 21
- Views: 5645
- Tue Feb 21, 2012 10:43 am
- Forum: Macro and Micro Technique and Technical Discussions
- Topic: First light
- Replies: 21
- Views: 5645
This might be obvious but if you start testing with flash remember to either turn off your led lights or makes sure that your unflashed exposure setting is dark enough to eliminate the ambient light from the leds. I find the simplest light setup which easily allows me to combine flash and continuous...
- Mon Feb 20, 2012 9:56 am
- Forum: Equipment Discussions
- Topic: A ping pong ball?
- Replies: 3
- Views: 1529
- Sun Feb 19, 2012 1:29 am
- Forum: Equipment Discussions
- Topic: Variable Friction Arm
- Replies: 41
- Views: 22900
Well the arms arrived today. I'd say they are definitely up to the job of holding a flash unit like the 580. The clamps, however, are not suitable for attaching to a flat surface (table edge for example). I think I will need a Manfrotto clamp with the wedge... The Manfrotto superclamps go up to abo...
- Tue Feb 14, 2012 12:25 pm
- Forum: Equipment Discussions
- Topic: DIY: Focus Steper
- Replies: 31
- Views: 18818
Like Chris said, stepping motors plus encoders are simply because the stepper hopes you move whereas the encoder tells you you moved. It's not really that big a problem in our use but in industrial systems which try and perform fast accurate movements time and time again it is important. And yes - w...
- Tue Feb 14, 2012 5:04 am
- Forum: Equipment Discussions
- Topic: DIY: Focus Steper
- Replies: 31
- Views: 18818
Andrew, I probably didn't communicate my point clearly. By turning off standby, you can take as much time as you want arranging your shot, and the flashes won't turn to standby mode. No need to start with a throwaway shot. One frame every five seconds, huh? I usually go about 16 seconds between fra...
- Tue Feb 14, 2012 3:27 am
- Forum: Equipment Discussions
- Topic: Equipment procurement & setup suggestion
- Replies: 6
- Views: 1714
As Chris mentioned, it would be really helpful to know more about your intended subject matter. Of your existing equipment it would appear that the only one with an "external" f-stop ring is the 50/1.8. For about $15, you could get a set of the cheap Chinese extension tubes (Nikon mount) and a Niko...
- Tue Feb 14, 2012 3:18 am
- Forum: Equipment Discussions
- Topic: DIY: Focus Steper
- Replies: 31
- Views: 18818
- Tue Feb 14, 2012 3:15 am
- Forum: Equipment Discussions
- Topic: DIY: Focus Steper
- Replies: 31
- Views: 18818
- Mon Feb 13, 2012 1:02 pm
- Forum: Beginners Macro
- Topic: Mag question
- Replies: 11
- Views: 5131
Simply put it is the Magnification =(Si-f)/f where Si is sensor plane to lens plane and f is the focal length of the lens. you can put some numbers into this calculator and it will show you: http://tirpor.com/macro/macro_DOF.htm Mostly I'm just wondering if it would be in the 5x to 10x range, or wou...