Quick Summary
The Sigma 1.4x EX DG APO Teleconverter for Sony Minolta A Mount DSLR and SLT is a teleconverter that gives a 1.4x reproduction ratio and 1.4x focal length compared with a master lens. It is described as having a lens construction of 5 elements in 3 groups.
Who It Is Best For
This is for photographers who already use a compatible Sony Minolta A Mount DSLR or SLT setup and want to extend the reach of a master lens. It suits shoppers looking for a teleconverter rather than a full lens, with the key buying point being the 1.4x factor.
What To Know Before You Buy
Check that your camera and master lens are suitable for use with a teleconverter before ordering. The key verified details here are the 1.4x reproduction ratio, 1.4x focal length, and the stated lens construction.
Pros: Offers a 1.4x increase in focal length and reproduction ratio in a compact teleconverter format.
Cons: Compatibility should be checked carefully because the fit depends on the camera and master lens combination.
Common Buyer Questions
What does 1.4x mean?
It means the teleconverter is described as giving 1.4x the focal length and 1.4x the reproduction ratio of the master lens.
Is this for Sony Minolta A Mount cameras?
It is listed for Sony Minolta A Mount DSLR and SLT use, so check your exact camera and lens combination before ordering.
Does it change the lens construction?
The stated lens construction is 5 elements in 3 groups.
Is this a full lens?
No, it is a teleconverter designed to work with a master lens.
Key Details
| Product type | Teleconverter |
| Brand | Sigma |
| Model line | EX DG APO |
| Compatibility | Sony Minolta A Mount DSLR and SLT |
| Reproduction ratio | 1.4x that of a master lens |
| Focal length | 1.4x that of a master lens |
| Lens construction | 5 elements in 3 groups |
Final Buying View
The Sigma 1.4x EX DG APO Teleconverter is a focused choice for anyone looking to add 1.4x magnification and focal length to a compatible master lens on Sony Minolta A Mount DSLR and SLT equipment. If that is the feature you need, it is a straightforward option to compare carefully against your camera and lens setup before buying.




