Sigma 105mm F1.4 DG HSM | Art is listed for SIGMA SA with Full frame coverage. Its verified front filter size is Ø105 mm. The supplied research links this exact mount variant to manufacturer evidence. Body-specific AF, crop and adapter behavior remain separate checks.
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Verified specifications
| Field | Value |
|---|---|
| Maker model code | A018 |
| Mount | SIGMA SA |
| Image format | Full frame |
| Front filter thread | Ø105 mm |
| Model ID | sigma-a018-105-14-sigma-sa |
| Focal length | 105 mm |
| Maximum aperture | f/1.4 |
| Filter attachment type | screw_in |
| Weight | 58.0 oz (approx.; 1645 g maker value) |
| Length | 5.18 in (approx.; 131.5 mm maker value) |
| Maximum barrel diameter | 115.9 mm |
| Closest focus | 3.28 ft (approx.; 1 m maker value) |
| Maximum magnification | 0.120482× |
| Lens AF hardware | Maker states yes |
Compare camera lenses listings
Compare the exact model code and rear mount in each listing. Amazon results may contain another mount or generation; the search is not a compatibility verdict.
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Search camera lenses on AmazonChoosing a camera
Look for the SIGMA SA designation on the camera specification, then verify the exact model code and mount variant against its support page. The maker lists a 105 mm focal range and f/1.4 maximum aperture. A physical mount match is a starting point; still AF, movie AF, crop behavior, stabilization and firmware need separate checks.
Choosing a filter
A circular screw-in filter with a matching documented thread size is only a mechanical candidate. Magnetic filters, wide frames and stacked rings need separate system and vignetting checks. When no front thread is specified, do not buy a size from the focal length or barrel diameter.
Hoods, caps and other maker-listed parts
“Supplied” describes the maker’s package statement for this exact lens record. A merely related part may be sold separately, and neither label establishes cross-generation interchangeability.
| Part code | Maker label | Relationship |
|---|---|---|
| LH1113-01 | LH1113-01 | Maker states supplied |
| TS-111 | TS-111 | Maker states supplied |
| PT-21 | PT-21 | Maker states supplied |
| LCF-105 | LCF-105 | Maker states supplied |
Keep exploring
Official sources and scope
Checked for this reference on October 30, 2026. Product firmware and support lists can change; inspect the current maker page for your exact revision.