Diameter 114 mm Focal length 900mm Newtonian Reflector Mirror for astronomical

Worth it to buy

Ótima qualidade. Produto excelente

Perfect for a fun project telescope. I bought 3 of these sets, one for my Dad, one for my youngest son, and one for myself. We used them in 114mm Hadley telescopes that we 3D printed the majority of the parts for. We have really enjoyed the views that these inexpensive mirrors have provided of the moon, and our planetary neighbors.

I purchased two. Received two boxes. But, secondary mirror is not there in any of the two mirrors.

反射鏡の精度は判りません DIYで鏡を交換して遊んでいます。 月は綺麗に見えました それ以上は工作精度とか絡んでくるので DIYでは判断が付きません ただ、海外便なので 納期が書いてあるより長いですよ〜〜 ドキドキしました。 リサイクルで F５００の望遠鏡を４０００円で買い 鏡が駄目なので 買い求めましたが ５００ミリが見当たらず 鏡筒を付け足して ９００ミリが使えるようにしました