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Pentax
Pentax 26555 smc FA 645 400mm ED [IF] Lens
Achieve Unrivaled Detail with the Pentax 645 400mm Lens The Pentax smc FA 645 400mm f/5.6 ED [IF] lens is engineered for exceptional image quality and sharpness. Designed as a component for SLR cameras, this lens delivers outstanding performance in a sleek, black finish. Lens Structure: 7...
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Overview
Achieve Unrivaled Detail with the Pentax 645 400mm Lens
The Pentax smc FA 645 400mm f/5.6 ED [IF] lens is engineered for exceptional image quality and sharpness. Designed as a component for SLR cameras, this lens delivers outstanding performance in a sleek, black finish.
- Lens Structure: 7 elements in 6 groups
- Focal Length: 400mm (Fixed)
- Lens Color: Transparent
- Color: Black
- Diameter: 8.3 cm
- Filter Size: 77 mm
- Product Length: 25.2 cm
- Depth: 25.2 cm
Key Features
Product description : Pentax smc FA 645 400mm / 5.6 ED [IF] Component for: SLR
Lens structure (elements/groups): 7/6
Fixed focal length: 40 cm
Lens colour: transparent
Colour : black.Diameter: 8.3 cm.Filter size: 7.7 cm.Product length : 25.2 cm.Depth: 25.2 cm
Specifications
Product Type
Camera Lens
Brand
Pentax
Model
smc FA 645 400mm ED [IF] Lens
Component For
SLR
Lens Structure (elements/groups)
7/6
Fixed Focal Length
40 cm (400mm)
Lens Features
ED (Extra-low Dispersion), [IF] (Internal Focusing)
Lens Color
Transparent (glass), Black (body)
Diameter
8.3 cm
Filter Size
7.7 cm
Product Length
25.2 cm
Depth
25.2 cm
Frequently Asked Questions
What is the focal length of the Pentax smc FA 645 400mm ED [IF] Lens?
This lens has a fixed focal length of 400mm, also listed as 40 cm, making it a telephoto prime lens.
What does ED and [IF] mean in the lens name?
ED stands for Extra-low Dispersion, which helps in reducing chromatic aberrations, while [IF] means Internal Focusing, where the lens length remains constant during focusing.
How many elements and groups are in the construction of this lens?
The lens structure consists of 7 elements arranged in 6 groups, a configuration that often contributes to optical quality.
What is the diameter and filter size of this lens?
The lens has a diameter of 8.3 cm and a filter size of 7.7 cm, important specifications for accessories.
What type of camera is this lens designed for?
The Pentax 26555 smc FA 645 400mm ED [IF] Lens is designed as a component for SLR cameras, specifically the Pentax 645 system.
Is this a zoom lens or a prime lens?
This is a prime lens, indicated by its fixed focal length of 400mm, meaning it does not zoom.
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