I'm looking to buy a zoom .

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messier 111 Canada
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Re: I'm looking to buy a zoom .

#21

Post by messier 111 »

Don Pensack wrote: Wed Mar 27, 2024 3:39 pm Zooms can be sharp, but they have very narrow fields of view in general.
The Leica Aspherical and the APM Super Zoom are two exceptions.
The Svbony 3-8mm Zoom also has a wider field than most.
Here is a page of Zoom measurements taken in a lab:
https://astro-talks.ru/forum/viewtopic. ... 83#p101290
yellow = exceptional image quality.
Blue = poor image quality
thx Don .
REFRACTORS , . Lunt 80mm MT Ha Doublet Refractor .

BINOS REFRACTOR , apm 82mm sd on the way here .

BINOS , Celestron 7x50 made in Japan .

EYEPIECES, 26mm Nagler t5 , 2-zoom Svbony 7-21 ,2-Baader Hyperion Universal Zoom Mark IV 8-24mm 68° , Orion Premium Linear BinoViewer .

FILTERS, Nebustar 2 tele vue .Celestron uhc . Apm solar wedge . contrast booster 2 inches and 2 - 1,25 .

MOUNTS , cg-4 ,MANFROTO 028 B and fluide head 608 on the way here .



Jean-Yves :flags-canada:
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