배 율 : 8배율 대물 렌즈 지름 : 20mm 사출 동공 크기 : 2.5mm 실 시 야 각 : 6.6 ˚ 체 감 시 야 각 : 53 ˚ 최근접관측거리 : 4m 렌즈 코팅 타입 : SWAROBRIGHT,SWARODUR, SWAROTOP 코팅 크 기 : 101mm x 59mm x 38mm 무 게 : 215g삼 각 대 장 착 : 쌍안경 거치대 별매 재 질 : 질기고 가벼운 합금, 천연가죽(충격방지,미끄럼방지) 방 수 : 내부 질소가스 충진 (결로 방지, 미터방수[4M]) 구 성 품 : 스트랩, 케이스, 광학섬유 품 질 보 증 : 5년
Specifications Fieldmicroscope Mini Magnification (x) 20x (fixed) Optical system Upright, unreversed image; eyepiece diopter adjustable for right eye; 51-to-52mm interpupillary distance adjustment Field of vision (mm) 11 (diameter) Angle of view (º) 12.8 Vertical adjustment 42mm from the base of stage Eye relief (mm) 12.8 Plate Removal and reversible (top: flat; underside: built-in cup) Dimensions (mm) (In use) 156-202 (H)x89 (D)x90 (W) (Folded close) 124(H) Weight (g) Approx. 395 Accessories S
Easy blowing, High tone dog whistle, fitted with solid, waterproof pearl, to give a trill for those who want a distinctive and different sound. With a frequency that fluctuates by 750 Hertz. 210 Small ultra high pitch whistle has a natural cork ball which produces the familiar 'trilling' roll of the pea whistle. 210.5 Same as the 210 but with out the cork ball, produces a single extremely high frequency.
제조 홀씨이야기 재질 100% 면 60수 프린팅기법 디지털 프린팅 사이즈 53*53 cm 세탁방법 손세탁, 중성세제 세탁 품질보증 6개월
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