joejeweler
Well-known member
I thought that since I recently acquired a later example of the shorter tube version of the Zeiss 8x30B Dialyt,.....that I would post some pics of it along side it's earlier longer tube version.
I was actually quite surprised at just how much shorter Zeiss was able to make this version, and in fact it compares very closely to my Leitz 8x32 Trinovid. The Trinovids are usually noted for their compact size, weight, and ergonomics. The Leitz Trinovids are often said the compact size was achievable through use of the Uppendahl prism design.
However, I haven't read whether Zeiss made use of a different prism design (Uppendahl perhaps?
, for their short tube version of the 8x30B Dialyt,....and whether they also made use of the Uppendahl prisms on this version? Otherwise, how else could they work up a so much smaller version of these Dialyts?
The serial number of my later short tube Zeiss 8x30B Dialyt is #1621323 , which is much higher than the earlier long tube version,.....having the serial number of 671950.
I haven't had a chance to do any serious comparisons in viewing under various lighting conditions, and can only hope the short tube version at least "approaches" the sharpness of my earlier longer version!
Lacking phase or multicoating,....my long tube Dialyt must be "cherry", because it's the sharpest non-phased glass I have had the pleasure to use, and never felt I was lacking anything in the field using it. (other than a bit more flare under tough lighting conditions, and of course a substantial weight as it's built like a tank!).
Anyway,.....the pics are below showing just how compact these old 8x30B Dialyt's became before they were discontinued. The weight is noticably lighter also in the short tube, and "feels" similar to the Leitz 8x32 Trinovid, although I suspect the Dialyt is heavier due to the double wall objectives focusing (the inner objective lens tubes focus within a wider outer tube), but I didn't have a scale handy to measure the difference.
In the last picture I compared the short 8x30B Dialyt to another recent purchase,.....a VERY nice near mint and clear glass Leitz 7x35B Trinovid with the much more practical "standard" neck strap lugs. This one is plenty sharp also, btw,....with a relaxed and steady view This one is a Portugal made unit,....and I much prefer (and trust) the standard strap lugs and ease to fit a strap. Seems strange it took so long to get standard lugs on the Leitz Trinovids, before they were discontinued.
I was actually quite surprised at just how much shorter Zeiss was able to make this version, and in fact it compares very closely to my Leitz 8x32 Trinovid. The Trinovids are usually noted for their compact size, weight, and ergonomics. The Leitz Trinovids are often said the compact size was achievable through use of the Uppendahl prism design.
However, I haven't read whether Zeiss made use of a different prism design (Uppendahl perhaps?
, for their short tube version of the 8x30B Dialyt,....and whether they also made use of the Uppendahl prisms on this version? Otherwise, how else could they work up a so much smaller version of these Dialyts?The serial number of my later short tube Zeiss 8x30B Dialyt is #1621323 , which is much higher than the earlier long tube version,.....having the serial number of 671950.
I haven't had a chance to do any serious comparisons in viewing under various lighting conditions, and can only hope the short tube version at least "approaches" the sharpness of my earlier longer version!
Lacking phase or multicoating,....my long tube Dialyt must be "cherry", because it's the sharpest non-phased glass I have had the pleasure to use, and never felt I was lacking anything in the field using it. (other than a bit more flare under tough lighting conditions, and of course a substantial weight as it's built like a tank!).
Anyway,.....the pics are below showing just how compact these old 8x30B Dialyt's became before they were discontinued. The weight is noticably lighter also in the short tube, and "feels" similar to the Leitz 8x32 Trinovid, although I suspect the Dialyt is heavier due to the double wall objectives focusing (the inner objective lens tubes focus within a wider outer tube), but I didn't have a scale handy to measure the difference.
In the last picture I compared the short 8x30B Dialyt to another recent purchase,.....a VERY nice near mint and clear glass Leitz 7x35B Trinovid with the much more practical "standard" neck strap lugs. This one is plenty sharp also, btw,....with a relaxed and steady view
This one is a Portugal made unit,....and I much prefer (and trust) the standard strap lugs and ease to fit a strap. Seems strange it took so long to get standard lugs on the Leitz Trinovids, before they were discontinued.Attachments
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