Sony FE 85mm F1.4 GM vs Sigma 40mm T1.5 FF (Sony E)
Sony FE 85mm F1.4 GM vs Sigma 40mm T1.5 FF (Sony E)
When comparing Sigma 40mm T1.5 FF (Sony E) and Sony FE 85mm F1.4 GM, which one is better?
1. Compare weight
The lens that weighs the least of the two is Sony FE 85mm F1.4 GM which weighs 820 g, compared to the loser Sigma 40mm T1.5 FF - (Sony E) which weighs 1620 g.
Winner: Sony FE 85mm F1.4 GM
Regarding weight: When it comes to the lens's weight, it's actually more important than many people think that the lens weighs as little as possible — it's simply a pain to lug around a lens that's too heavy when you're photographing or filming for several hours, and a few hundred grams can make a real difference.
2. Compare minimum focusing distance
When it comes to minimum focusing distance, that is how close to the subject the lens can focus, Sigma 40mm T1.5 FF - (Sony E) is the winner with a minimum focusing distance of 40 cm. This can be compared with the minimum focusing distance of 85 cm for Sony FE 85mm F1.4 GM.
Winner: Sigma 40mm T1.5 FF (Sony E)
Regarding minimum focusing distance: The lens's minimum focusing distance determines how close you can photograph your subject, such as a face or an animal. If the minimum focusing distance is 50 cm then you cannot get closer to your subject than 50 cm. Macro lenses often have a very low minimum focusing distance so that you can take close-up shots (macro photography).
Specifications
Full specifications table of Sony FE 85mm F1.4 GM and Sigma 40mm T1.5 FF (Sony E):
| Sony FE 85mm F1.4 GM | Sigma 40mm T1.5 FF - (Sony E) | |
 |  | |
| Brand | Sony | Sigma |
| Weight | 820 g | 1620 g |
| Mount | Sony E | Sony E |
| Focal Length | 85 mm | 40 mm |
| Largest Aperture | 1.4 | 1.5 |
| Anamorphic Lens | No | No |
| Minimum Focusing Distance | 85 cm | 40 cm |
| Type | Prime | Prime |
| Filter Thread | 77 | 82 |
| Stabilization | No | Yes |
| Covers a Full Frame Sensor? | Yes | Yes |