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Arnaud Leroy

Televue powermat 2.5X

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Bonjour,

est ce que quelqu'un connaitrait la distance focale de cette "barlow" ou alors qui l'aurait mesurée ?

D'avance merci
Arnaud Leroy
AT60

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Bonsoir Thierry,

merci pour la réponse. Bon je vais voir si c'est l'info qui me manque car cela va en fait servir à monter le spectro lhires sur la T60 afin de ramener le faisceau de F/3.5 à un F/D plus long.

Voilà pour la petite histoire.
Arnaud

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Il n'y a que la Ppowermate 5x qui peut être utilisée en tirage variable.

Utilise plutôt une barlow classique, sinon...

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