76mm Fine Focus Track Stand,ZJ-621

76mm Fine Focus Track Stand,ZJ-621

Specification: Scope holder:Φ76mm Track Length:300mm Base Stand Throat Depth : 129mm Dimensions:290x240x20mm Coarse/Fine Focus Type: Coarse Focus Travel Distance:104mm Net weight: 2.63kg (5.80lbs) Dimensions: 240x290x355mm
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Product Details

76mm Fine Focus Track Stand,ZJ-621


Specification

Scope holder:Φ76mm

Track Length:300mm

Base

Stand Throat Depth : 129mm

Dimensions:290x240x20mm

Coarse/Fine Focus Type: Coarse Focus Travel Distance:104mm

Net weight: 2.63kg (5.80lbs)

Dimensions: 240x290x355mm 


Industry product knowledge 

Ring flash is a circular photographic flash that fits around a camera lens. Unlike point light sources, a ring flash provides even illumination with few shadows visible in the resulting photographs because the origin of the light is very close to (and surrounds) the optical axis of the lens. It was invented by Lester A. Dine in 1952 for use in dental photography, but now is commonly used in applications such as macro, portrait and fashion photography.

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