LongPerng 80 ED 굴절망원경 대물렌즈 구경 (Objective Lens Diameter) 80mm 대물렌즈 초점거리 550mm 포커서(Focuser) 2" F수 (F-number) 6.8 렌즈 코팅 (Lens Coating) Fully multi-coating 외장재질(Housing Materials) Aluminum 마감처리(Finish) Premium High glossy anodizing Finish 무게 (weight) 3.0kg 길이 (Size) 460 mm 기본 구성품 (Accessories) Deluxe Aluminum Case 2", 1.25" adapter -참고 사항 본 상품은 굴절망원경 경통으로 관측을 위해서는 적어도 하나의 프리즘과 아이피스가 필요합니다
Specifications Fieldmicroscope Magnification (x) 20x (fixed) Optical system Upright, unreversed image; eyepiece diopter adjustable for right eye; 56-to-72mm interpupillary distance adjustment Field of vision (mm) 11 (diameter) Angle of view (º) 12.6 Vertical adjustment 50mm from the base of stage Eye relief (mm) 11.1 Plate Removal and reversible (top: flat; underside: built-in cup) Light source 2.5V-0.5A halogen lamp Light settings On/off Power source CR 123A lithium battery; approx. 1-hour bat
유효구경 : 60mm 초점길이 : 900mm 초점비율 : F/15 분 해 능 : 1.95초각 파 인 더 : 레드닷 파인더 한계등급 : 10.7 접안렌즈 : SR4(225배), H12(75배), H20(45배) 마 운 트 : 적도의식 마운트 삼 각 대 : 알루미늄 무 게 : 6.8 Kg
This whistle gets as close as you can get to the ease of blowing and sound control of an Acme Thunderer - but for those who prefer a whistle without a pea. Blowrate: Easy Effort Blowsound: Very High Loudness Blowtone: High Frequency Dimensions: 5(L) x 2.3(W) x 2.2(H) cms