Macro.






Please share any comments or criticisms you may have,

Roger.

Thanks for the nice comments, Steve.

Yes, it was a stack, of 14 x 1/2 degrees of focus ring rotation.
The head of the sporangium is about a mm. long, I actually forgot to take a scale rule shot, so that's just a rough dim. from life.
I don't think there would be enough DOF for a single shot, certainly not enough to capture the twisting of the stem.
Although I could capture the head alone with a single shot, it would involve increasing the f-stop & then you're into diffraction.
I can't help but believe I'm flirting with that all the time, to be honest, especially at these magnifications......
but I don't see the point of sailing really close to the wind with the number of shots in a stack, it being almost impossible to estimate the rate of overlap of DOF from shot to shot. Better to have too many than not enough!

Cheers,

Roger.

K5.
200mm f4 with 50mm f2.8 Componon S, reversed.






Thanks for looking,

Roger.

Thanks Ian, LB & Steve.

Taken indoors on the kitchen table, lit by diffused flash on full power to "get through" the dense red of the IR72 filter.
Took some care judging the start & end points of the stack because of the focus-point difference with IR.

Cheers,

Roger.

.........just fiddling around, really.






k5, 100mm. D FA Macro, Hoya R72 IR filter.
Stack of 22 in Combine ZP.
Elementa 11, converted to mono & bordered.



What do you think.........?


Roger.

The attachment end of a dead/dry trumpet shaped flower......?

Roger.

My latest acquisition is this thread!!!

(Found it, Steve!)

Well, that's beautifully assembled from the initial inspiration, thanks for the mention(!)..

Vis-a-vis the protractor...

mine comes from Blocklayer, still, but now I draw it with a larger radius to the circle, 100mm., but print only a segment of it so it doesn't need to go all the way round the lens (or pointer) which becomes very space demanding! With such small DOF for the stack, the total arc is more than covered by the 90 degrees available, giving 180 steps of 0.5 degrees of rotation of the lens focus ring.
Anything more than 30 steps nearly blows my old desktop up!!

My pointer is composed of fine plastic covered garden wire, several strands thereof, ending in a 00 insect pin. The wire 's bendability enables very accurate initial placing of the terminal pin close to the surface of the protractor.
Readings of 0.5 of a degree are easy, 0.25 possible...........

I don't know what these figures represent in microns &, what's more, I haven't a clue how this could be measured/worked out. It is irrelevant anyway because these units are only a means to an end within the imaging / stacking process!!

I'll get a few piccies up together & pop them in My Photos, it'll make things clearer....

Roger.

Steve....

Sorry, it's me again!


My decreasing attention span has beaten me again.....

Can't find ref to your 1/24th mm. step size.
Or a post about your set up.

But!

Seen some great images & not all of them plants!

Couldn't do me a link ( or 2!) could you?

Please!

Many thanks,

R.

Lacewing larva hatch.






5mm. Beetle




Leafhopper Portrait



Leafhopper Eyestripe



Weevil




Moth scales details



All K5.


C&C sought...........

Roger.

Hi, Steve.

I'd be very interested to see/hear how you achieved your 1/24mm focus step size for your stacks, or is it still a W.I.P.?

Cheers,

Roger.
(coker)