AF 135mm f/2.8 [T4.5] STF
- 135mm
- f/2.8
- Telephoto
- 730 g
- Min focus 0.87 m
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Quick answer
A manual-focus 135mm lens with an apodization element for exceptionally smooth out-of-focus areas. It weighs about 730 g and has a T4.5 transmission at f/2.8.
Pros
- Apodization for smooth blur
- Distinctive rendering
- 72mm filters
- Sharp
Cons
- Manual focus only
- Light loss (T4.5)
Verdict
A specialist lens. It is for those who want the smoothest background blur.
About this lens
This 135mm f/2.8 short-telephoto prime lens from Minolta fits Sony A mount cameras. The focal length is a classic choice for portraits and details.
Minolta AF 135mm f/2.8 [T4.5] STF specifications
- Brand
- Minolta
- Mount
- Sony A
- Focal length
- 135mm
- Maximum aperture
- f/2.8
- Lens type
- Telephoto
- Format coverage
- full-frame
- Released
- 1999
- Optical construction
- 8 elements in 6 groups
- Autofocus motor
- none
- Minimum focus distance
- 0.87 m
- Maximum magnification
- 0.25x
- Filter thread
- 72 mm
- Weight
- 730 g
- Length
- 99 mm
Specification source: dyxum.com
What can you shoot with the Minolta AF 135mm f/2.8 [T4.5] STF?
- Portraits with smooth bokeh
- Stills of flowers
- A-mount specialist use
Its bright maximum aperture handles indoor and evening light reasonably well.
Full-frame equivalent and field of view
Calculated from the focal length and crop factor. Not measured.
| Sensor | Crop | Equivalent | Horizontal FOV | Diagonal FOV |
|---|---|---|---|---|
| Full frame | 1.0x | 135mm | 15.2° | 18.2° |
| APS-C | 1.5x | 203mm | 10.2° | 12.2° |
Frequently asked questions
What does STF mean?
STF stands for Smooth Trans Focus, using an apodization element to produce very smooth out-of-focus areas.
Why is it listed as f/2.8 [T4.5]?
The apodization element absorbs light, so the lens transmits like an f/4.5 lens even at f/2.8.
Does it have image stabilization?
No. Sony A-mount bodies stabilize the sensor, so shake reduction depends on the camera.
Alternatives for Sony A from other brands
All Sony A lensesSame mount, overlapping focal range, closest maximum aperture first.
