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A mighty little 8x30 !

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#26 KennyJ

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Posted 12 December 2020 - 07:10 AM

Eric,

 

Could you estimate the magnification yielded by your 4 inch magnifying glass when placed at optimal focus distance from photos on your computer screen?



#27 WALL.E

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Posted 12 December 2020 - 11:10 AM

Kenny,

 

Optimum placement of the magnifying glass yields 3.3X.

 

The exit pupil is incredible and eye relief is right out of this world.

 

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#28 KennyJ

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Posted 12 December 2020 - 03:23 PM

Thanks for that info, Eric.

 

Amongst most mediocre magnifying glass, in terms of optimum image clarity in the 4 inch diameter range, I've always considered 3.2x to be the maximum useful magnification, particularly for hand - held use.

 

Perhaps it would be worth your while either searching for a replacement glass with that all important 0.1x less magnification, or giving serious consideration to a tripod and special mount to use with your existing set - up?

 

Kenny



#29 WALL.E

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Posted 13 December 2020 - 10:19 AM

Kenny,

 

Predictably, your wisdom and experience prevails.

 

I am shamed again that I didn't think of that.

 

Your ingenuity and intrepidity totally overshadows Isambard K. Brunel.

 

002_opt(7).jpg

 

001_opt(6).jpg

 

I find a great improvement using the glass mounted. Thank you so much!

I am searching for a proper focal reducer.

I'm not sure I'd want to use anything less than a 028B for support however.

 

I hope that the 028B will stand up under the load of my Tasco model 320 8X30. (JB191).

 

Good day!

 

Eric

 

 



#30 KennyJ

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Posted 13 December 2020 - 10:57 AM

Much as I admire the twin - handled approach to pan and tilt type heads such as a Manfrotto 501, whenever magnifying glasses ( and even more importantly when shaving mirrors ) are involved, I prefer a "belt and braces approach" of adding a third, extended, knee operated central handle.

 

Crucially, this leaves at least one hand free to carry out the shaving action itself, rather having to depend upon any increasingly popular, but prohibitively expensive razor robotics, the obvious downside being the limited balance one can hold whilst standing on just one leg during shaving.

 

However, practice makes perfect, as they say, and there is no better practice for this than looking through a decent 8x30 whilst balancing on one leg.

 

Kenny


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#31 Albie

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Posted 13 December 2020 - 01:21 PM

Somebody had suggested that Ian Anderson might use binoculars while balancing on one leg.


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