Second try with new lens: My second try with new lens received today. Back side of an old dried up small mushroom. F/2 at 4X, 4 sec at ISO 400 (ambient light), 47 images at 0.1mm...

jackm1943 Loc: Omaha, Nebraska

My second try with new lens received today. Back side of an old dried up small mushroom. F/2 at 4X, 4 sec at ISO 400 (ambient light), 47 images at 0.1mm increments. I think this lens is going to be lots of fun when it warms up a little around here.

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FiddleMaker Loc: Merrimac, MA

jackm1943 wrote:

My second try with new lens received today. Back side of an old dried up small mushroom. F/2 at 4X, 4 sec at ISO 400 (ambient light), 47 images at 0.1mm increments. I think this lens is going to be lots of fun when it warms up a little around here.

I like this 2nd try the best. Yes, it must be a tad chilly in Omaha

Mark Sturtevant Loc: Grand Blanc, MI

👍

mantamoon Loc: Houston

very nice.

jackm1943 Loc: Omaha, Nebraska

FiddleMaker wrote:

I like this 2nd try the best. Yes, it must be a tad chilly in Omaha

Thanks FiddleMaker.
JackM

jackm1943 Loc: Omaha, Nebraska

Mark Sturtevant wrote:

👍

Thanks for looking in Mark.
JackM

jackm1943 Loc: Omaha, Nebraska

mantamoon wrote:

very nice.

Thank you mantamoon.
JackM

Curmudgeon Loc: SE Arizona

Macro lenses are just plain fun. Great shot.

Retired CPO Loc: Travel full time in an RV

I like the shot. If you are using a macro couldn't you just use a smaller aperture to get the same thing? I have nothing against focus stacking, I'm looking for soft ware to use with the stacking capability of my D850. Just curious, it doesn't look like the mushroom has a lot of depth to it.

jackm1943 Loc: Omaha, Nebraska

Curmudgeon wrote:

Macro lenses are just plain fun. Great shot.

Thanks. Yes, they are fun. I kind of lost interest last year but this little guy is going to make 2021 a lot more fun for me I'm hoping.
JackM

jackm1943 Loc: Omaha, Nebraska

Retired CPO wrote:

I like the shot. If you are using a macro couldn't you just use a smaller aperture to get the same thing? I have nothing against focus stacking, I'm looking for soft ware to use with the stacking capability of my D850. Just curious, it doesn't look like the mushroom has a lot of depth to it.

Thanks CPO. Using a smaller aperture does not work well in extreme macro situations. Since the "effective f stop" is much greater than the rated value, diffraction quickly becomes a problem. For example, at f/2 and 4X, my effective aperture is f/10. And, even stopped down, the DOF is extremely shallow. The depth of this image is over 4 millimeters and it took over 40 images to cover that. Even stopped down all the way, it wouldn't cover that, plus the image would be very fuzzy due to diffraction. I'm planning to do some studies to see just how far I can stop this lens down before noticeable diffraction sets in.
Lastly, focus stacking can be tedious but is not technically difficult at all and can be done hand-held at 1X and less. Some sort of focus rail is usually needed at magnifications much greater than 1:1. I'm using Zerene which is a very popular and good program. Helicon Focus is another good and popular software.
JackM