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The view through older Glass


farnz

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Summitar on M8 while waiting for the moon

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Astro Fernbildlinse 5/500 on M240 in the garden (near focus is at 10 ft)

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same looking at partial eclipse of the moon, cropped to appr. 95 %

 

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Schneider Xenar 4.5/135 on M240 uncoated, wide open

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made for Korelle Reflex 1936, got an adapter to Pentax-screw-mount, than adapter to Leica, some pp in capture1

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Schneider Xenar 4.5/135 uncoated on M240 again

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Zeiss 2/50 Pancolar

both wide open and some pp in Capture one and one hour difference when shot, maybe that's the reason for the different colors apart from coating

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3 hours ago, romanus53 said:

both wide open and some pp in Capture one and one hour difference when shot, maybe that's the reason for the different colors apart from coating

I'd have thought it would more likely be the M240's Auto White Balance unless you were shooting with the Daylight colour balance setting for both.

Pete.

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vor 6 Stunden schrieb farnz:

I'd have thought it would more likely be the M240's Auto White Balance unless you were shooting with the Daylight colour balance setting for both.

Pete.

Gold thought, I will set WB auto oft Next time and shoot right in a row to compare

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Roses are fading away

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Schneider Tele-Xenar 5.5/150 LTM uncoupled on M240

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M240 + 1972 Nikkor-O 55/1.2 (converted to M and RF coupled), wide open

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Morning project: "bokeh study"...
Focus on nearest apple at MFD (60cm), handheld, f/1.2, f/2 and f/4 respectively
M10 + 1972 Nikkor-O 55/1.2 (converted to M and RF coupled)

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Yeah, foliage is an unforgiving test... I guess the curvature and soap bubbles are quite over the top @ f/1.2 - and the OOF areas are a bit harsh @ f/4.

Understanding this lens is an interesting challenge. It was an industrial CRT lens, originally designed for capturing traces on oscilloscope monitors. This implied strong field curvature, and I believe the color response was also adapted. It was optimised for a narrow magnification range, where it showed impressive center sharpness and resolution. Peak performance is supposedly between f/1.4 and f/4. By making it RF coupled, you loose macro capabilities, but gain in usability, focus range (my converted copy focusses from about 0.6m to infinity)... and in weird effects. But that's OK, I love experimenting.

In order to keep this thread focussed on images, here are two more from the same lens on the M240 @ f/1.2 and f/2.8 respectively. Hard to tell on a resized image, but the resolution on the front glass in the 2nd picture is nothing short of extraordinary when zoomed in.

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Untitled by JM__, on Flickr

50 Angénieux S1 - Provia 100 - M3

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45 Zunow 1.8 by JM__, on Flickr

45 Zunow 1.8 RF coupled on M10

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Testing a recent find, 

35 googled Summicron 8 elements, on M10

Abel by JM__, on Flickr

Best, JM.

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le lendemain by JM__, on Flickr

16 Hologon - Kodak E100 - Leica MD

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