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ChrigelKarrer

Member Since 05 Mar 2010
Offline Last Active Today, 02:41 PM
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Posts I've Made

In Topic: Red Sea "Rhinoceros" blenny

Today, 06:00 AM

The position inside the tube, the face shape and the colors are very close to a barnacle or tube blenny.

The main difference is the single cirri as most blennies have two cirri.

Maybe some kind of mutation?

Chris


In Topic: Panasonic LX-100 Nauticam housing

09 February 2015 - 08:59 PM

Hi Moses,

i was thinking to do the similar/same thing you did to bring the diopter nearer to the port glass but work kept my McDiver creativity leashed...

Great write up and well documented modding of "our" housing!!!

 

My test today in the pool revealed that the gain in image magnification is small, as you wrote a about 2 mm less wide image and no vignetting.

This makes it for me arguable to make this modification, a additional or stronger diopter would be my solution for those tiny tiny Nudi's here in Costa Rica.

But it is very difficult to photograph them with a macro lens as the surge makes focusing a real tricky task ...

But in a few months i am back in Sardinia and there is no surge ... :-)

 

But some pictures i made here show the power of this camera and the SubSee +10

Both fishes have a size of about 5 centimeters
Both photos are cropped out of a wider photo

P1010125-1.jpg
 

 

MacroSlimeFish.jpg


In Topic: Panasonic LX-100 Nauticam housing

09 February 2015 - 05:20 PM

So basically my results for image width at minimum shooting distance are:

 

140 mm / 5.51 inch 75mm no diopter

 47 mm / 1.85 inch 75mm + SubSee+10 on Nauticam Flip Adapter

 45 mm / 1.77 inch 75mm + SubSee+10 on contact with port glass


In Topic: Panasonic LX-100 Nauticam housing

09 February 2015 - 05:00 PM

Well, i went again to verify the pictures i took using the Nauticam Flip Adapter and the SubSee +10 Diopter and mounted the housing on two 4 pound weights to keep her put.

carefully sliding the weighted housing back and forth using manual focus i got a slighly better result than last time (4.5 centimetes and not 5.0 centimeters)

As i was already in the pool i tested also the flat, short 67mm threaded port + a old INON UWL - 100 wide angle wet lens wit 67mm tread.

 

Once again, i can't see any magnification difference in AF, AF macro or manual focus mode using the SubSee +10 diopter

 

LX100 generic port f/16 1/60 sec ISO 800
75mm no diopter

LX10075mm.jpg

 

 

 

LX100 generic port f/16 1/60 sec ISO 2000
75mm SubSee +10 AF macro

LX10075mmAFSubSee+10.jpg

 

 

 

LX100 generic port f/16 1/60 sec ISO 3200
75mm SubSee +10 AF macro mode

In this picture i hold the SubSee directly on the glass to avoid the space between the flip holder and the port, not a big difference

LX10075mmMacroModeSubSee+10.jpg

 

 

 

LX100 flat 67mm threaded port f/16 1/60 sec ISO 3200
24mm

width of Image: +/- 4 meters
shooting distance: +/- 4.10 meters

LX10024mmAFInonUWL100.jpg

 

 

 

LX100 flat 67mm threaded port f/16 1/60 sec ISO 3200
30mm
(minimum zoom to avoid vignetting)

width of Image: unknown

shooting distance: +/- 4.10 meters

LX10030mmAFInonUWL100.jpg

 

 

LX100 flat 67mm threaded port f/16 1/60 sec ISO 3200
30mm
(minimum zoom to avoid vignetteing)

width of Image: 8.7 centimeters
shooting distance: +/- 3 centimeters

 

I took also a CFWA photo, but as it was almost dark and the UWL-100 almost hit the ruler the picture looks so bad that it offend the eye and i censored it.

In any case, with a shooting distance of approx 3 centimeters the photo is 8.7 centimeters wide

 

I think that i could get even more near, but the lens is dropping shadow on the ruler so i may need to redo the test with a back illuminated ruler

 

Chris


In Topic: Panasonic LX-100 Nauticam housing

09 February 2015 - 06:04 AM

Minimum i could reach in the pool is slightly less then 2 inches or 5 centimeters with AF in macro mode.

AF in Macro mode or in AF mode is a question of millimeters more or less in width.

 

In any case, the SubSee +10 is giving a very nice quality with no distortions or CA

 

I uploaded a short macro video using the SubSee +10 (downsampeled from 4K to HD) here: http://www.sardiniad...oneModified.mp4

 

 

As soon i have some spare time will redo the test building a tripod to be able to measure also the focus distance between the housing and the ruler.

 

Chris