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Skywatcher 102 f/5 review and first light

Skywatcher Startravel 102 f/5 First Light.

Background

In December 2022, there was a number of times when I grabbed my grabngo 102mm Maksutov on the AltAZ mount. However, I wanted just a little more impact, so I put my 140mm Maksutov, the OMC140 on it. That was on the edge,...



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Canon image stabilized 10X30 Binoculars

Image stabilization in a Canon 10X30 IS II .

If you put binoculars on a tripod, you immediately notice that you see more details in the calm image than detached from the hand. At 6X or 7X magnification it is not so bad from the hand, that is still fairly calm. It is for this reason...

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A 150 mm Achromat and a 120 mm Apo, a personal review.

Performance of and differences between a 150mm widefield achromat and a 120mm apochromat.

A personal review.

Apples and pears are both fruit. Comparisons between the two are normally not done. Different taste, shape and bite. Still, we do it all the time. Consumers...

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102 mm Refractor versus 140 mm Maksutov; Vixen ED102 vs OMC140

102mm refractor versus 140mm Maksutov

Vixen ED102S vs. OMC140

Preface

Some years ago I bought an older Japanese Vixen ED 102 f / 9 refractor from the Nineties. Reason: I wanted to get rid of the long cooling time of my OMC Maksutov, but at least retain the image quality of the...

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21 deepsky tips

A list of 21 deepsky tips that will make you a better observer

1. You have to make sure that the viewfinder and telescope are aligned with each other. But almost everyone will undoubtedly have done that already and we assume that. There are also amateurs who swear by a Red...

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