Pentax
Pentax 26765 55-110mm f/5.6 SMC FA645 Lens
f/5.6
Versatile Standard Zoom LensIntroducing the Pentax SMC FA645 55-110mm f/5.6 Lens, a versatile zoom lens designed for Pentax 645 mount medium-format cameras. With its standard to medium telephoto range and advanced optical design, this lens is suitable for a wide range of photographic applications...
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Overview
Versatile Standard Zoom Lens
Introducing the Pentax SMC FA645 55-110mm f/5.6 Lens, a versatile zoom lens designed for Pentax 645 mount medium-format cameras. With its standard to medium telephoto range and advanced optical design, this lens is suitable for a wide range of photographic applications.
Specifications:
- Focal Length: 55-110mm (43.8-87mm equivalent in 35mm format)
- Maximum Aperture: f/5.6
- Minimum Aperture: f/45
- Lens Construction: 9 elements in 9 groups
- Coating: Super Multi Coating
- Minimum Focusing Distance: 2.6 feet
- Filter Thread: 82mm
Key Features
Product description : Pentax smc FA 645 55 - 110 mm / 5.6.
Lens structure (elements/groups): 9/9
Opening range: 5.6 - 45
Compatible with : Pentax 645
Maximum zoom (PS) : 0.16x.Diameter: 8.8 cm.Filter size: 8.2 cm.Product length : 10.4 cm.Depth : 10.4 cm
Specifications
Focal Length
55-110mm
Maximum Aperture
f/5.6
Minimum Aperture
f/45
Lens Structure
9 elements / 9 groups
Compatible Cameras
Pentax 645
Maximum Zoom
0.16x
Diameter
8.8 cm
Filter Size
8.2 cm
Length
10.4 cm
Depth
10.4 cm
Pros & Cons
👍 Pros
- Features a versatile zoom range of 55-110mm, offering flexibility for various photographic situations with a single lens.
- Designed specifically for Pentax 645 cameras, ensuring optimal compatibility and performance within that system.
- The optical construction includes 9 elements in 9 groups, suggesting a well-engineered design for image quality.
- Offers an opening range from f/5.6 to f/45, providing control over depth of field and exposure in diverse lighting conditions.
- With a maximum zoom of 0.16x, it allows for moderate close-up capabilities, adding to its utility.
👎 Cons
- The f/5.6 maximum aperture is relatively slow, which may limit its performance in very low-light environments.
- A minimum aperture of f/45 can introduce diffraction, potentially reducing overall sharpness at its narrowest setting.
- The lens diameter of 8.8 cm and length of 10.4 cm suggest it is a relatively large lens, which could impact portability and handling.
- Specific details about autofocus capabilities are not provided, which could be a concern for photographers relying on fast and accurate focusing.
- The filter size of 8.2 cm indicates that filters for this lens may be more specialized and potentially more expensive to acquire.
Frequently Asked Questions
What is the focal length range of this Pentax lens?
This Pentax smc FA 645 lens offers a zoom range from 55mm to 110mm.
What is the maximum aperture of the Pentax 55-110mm f/5.6 lens?
The maximum aperture of this lens is f/5.6, suitable for a range of lighting conditions.
Which camera systems is this lens compatible with?
This lens is designed to be compatible with Pentax 645 cameras.
What is the filter size for this lens?
The filter size for the Pentax 55-110mm f/5.6 SMC FA645 Lens is 8.2 cm.
How many elements and groups are in the lens structure?
The lens structure consists of 9 elements in 9 groups, contributing to its optical performance.
What is the physical length of this lens?
The product length of this Pentax lens is 10.4 cm.
Does this lens offer any macro capabilities?
Yes, it has a maximum zoom of 0.16x, which allows for some close-up shooting.
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