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Member postings for Raphael Golez

Here is a list of all the postings Raphael Golez has made in our forums. Click on a thread name to jump to the thread.

Thread: Macro-photography
30/09/2020 14:18:53

Thanks for the info Bill, very good features. I think this is a very good advantage of your camera. Im sure you can do that buffer feature on macro, I would say at most with a 1:1 magnification as beyond this it would be very difficult hand held.

I have successfully managed to take a 5 FPS shot on my old D700 hand held at 1:1 magnification and stack it in Helikon Focus. I have to reherse my "rocking" motion forward to act as a human focusing rail. I used this a lot with outdoor shots.

Post some more of your shots.

Raphael

30/09/2020 13:10:17

Great to see updates here.

Bill, very clear evidence of worn out parts. I would assumed you did it hand held then do a burst shots and the rest of stacking is handled by your camera?

Dave, I just use my XY milling machine table to do the increments and stack it in Helicon Focus although it would be nice to get it automated with an electronic controlled focusing rail. Maybe someday i can get my hands on it.

Raphael

17/08/2020 21:32:43

Nice shot Nick. Actually I love how your shots turned out. Reminds me of a Christmas Tree covered with snow. The background creates an effect the its windy and light snow.

The good thing about macrophotography is that most of your subjects is within your reach and you don't need to go out of your house the get an excellent pictures.

Keep it coming Nick and thanks for sharing!

Regards,

Raphael

16/08/2020 22:29:34

Flowers taken 0.5:1. Not a true macro by definition but exploring image stacking and depth of field at this magnification.

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Glass Swan

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Raphael

16/08/2020 22:26:30

80 image stack of a Harvestman. Taken with a 50mm reverse macro and a 80mm extension tube.

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16/08/2020 22:23:01

This is taken with a 92mm extension tube and a 4X Olympus microscope objectives. The magnification is only around 3X as I did not placed a complete 120mm extension tube. 130 image stack done via Helicon Focus.

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Edited By Raphael Golez on 16/08/2020 22:25:03

16/08/2020 22:16:27

Thanks Michael, Bandersnatch and Nick.

Nick I have the same issue also, especially hand held. I have to hold my breath and time the pressing of the shutter button in between breaths to avoid any movement or at least minimise it. I sometime takes several burst shots hoping one will be good. If I magnify beyond 1:1 then 80 percent of my work is done on a makeshift macro rail slide (I utilise my milling slide) and photostack it. This is the only way I can produce a good photo at this magnification.

I love the caterpillar picture. Im sure your granddaughter will enjoy your photos and subjects. My daughter is also fascinated with it. She always accompany me in our mini safari hunt for insects to take pictures in our garden.

I will upload a couple more of beyond 1:1 magnifications I took. Please do share more of your macro shots here.

Best wishes,

Raphael

15/08/2020 09:38:17

Very tiny jumping spider. He is about 2mm in size. Taken with 3X magnification. 

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Edited By Raphael Golez on 15/08/2020 09:39:05

Thread: Cognitive ability.
22/07/2020 14:14:52

Ah, The MOCA. Alway a very handy tool. I used several cognitive test when I use to run my memory clinic. Again as Hopper stated it is nothing to do with IQ. We use this test to assess cognitive decline. I preferred the MMSE as it is ideal in a out patient clinic to give us an overview of patients cognition. All this test has limitations, this is not a diagnostic tool for DEMENTIA but an aid to an overview of possible cognitive impairment or decline. It will direct you to consider memory issues from a clinical perspective. There are so many memory tools used and these are just a few. It all has its limitations. MMSE is also used to guide clinician in monitoring progression of cognitive decline and helps adjust treatment. The problem is a very high functioning individuals even with a diagnosed dementia which is worsening can still do a perfect score on this test. It also does not take into consideration the frontal lobe issues at which emotions plays a major role in cases of dementia. This is just to assess cognitive impairment.

 

Raphael

Edited By Raphael Golez on 22/07/2020 14:16:50

Thread: Macro-photography
01/07/2020 23:43:04

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01/07/2020 23:41:58

Hand held single shots with extension tubes.

4 leg spider

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01/07/2020 23:37:05

The depth of field is very thin as the magnification goes up with macro photography. Hand held using an extension tube on a macro lens is a skill you have to master. Holding your breath and sneaking up on your subjects needs a lot of practice.

01/07/2020 23:34:41

Very nice Damsel fly Nick. They are very shy and easily scared. Im sure with a 35mm macro at 1:1 you sneaked up on it like a ninja!

12/06/2020 21:22:31

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12/06/2020 21:19:28

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12/06/2020 21:17:24

Outdoor handheld single shots. Critters are very slow just after the rain. Taken with a 105mm macro plus 52.2mm extension tube.

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11/06/2020 01:27:25

Some updates: Taken at 4 times magnification using a microscope objective attached to an extension tube and to my camera. Pictures are very difficult as the insects are constantly moving. I tried my very best to capture the shots.

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09/06/2020 16:14:30

Enjoyed the recent photos posted here.

Michael, Thanks for the link. Enjoyed it.

BW,

Raphael

02/06/2020 00:29:34

Great shots Jack.

Added a total of 80mm extension tubes on my 105 and tried 50mm reverse micro plus 80mm extension. Here are the results. These are so small that it is very difficult shots. Very surprise with the magnification and the reverse macro is amazing.

Millipede

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Fern spore

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Lady bug

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Very small grasshopper

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?Katydid

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Stinger2020-06-01 23-36-57 (b,radius8,smoothing4).jpeg

Big Grasshopper, He is moving his legs and antennae. Hard to get focused.

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Crane Fly close up head, Taken with reverse macro and 80 mm extension tube.

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Raphael

30/05/2020 18:32:50

More detailed pictures. Photo Stacking really makes it "pop" and in full focus. These are very small flowers.

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Grass grain stalk.

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Regards,

Raphael

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