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Updated
Jul 17, 2026
Sigma Sigma 70-300mm f4-5.6 DG Macro (A-mount telephoto zoom)
Sony A-Mount · 70mm · f/4
Compiled from 4 real reviews · AI-assisted · accuracy-checked · Updated 17 Jul 2026
Overview
The Sigma 105mm f/2.8 EX DG Macro is a 1:1 true-macro telephoto that Sigma offered across several mounts, including the Sony/Minolta A-mount version covered here. Developed as an affordable, full-frame-capable alternative to first-party 100mm-class macros, it was aimed at photographers who wanted maximum resolution for close-up, product and portrait work without paying flagship prices. It wears Sigma's premium 'EX' finish and, on paper, competes directly with the Tamron 272E and Canon's 100mm macro. Across an aggregate of 26 A-mount user reviews it scores 4.65/5 overall, with sharpness rated an exceptional 4.88 — users repeatedly call it 'the sharpest lens I own.' There is no documented nickname or established community jargon for this lens; the sources are explicit that none exists, so none should be assumed. Its following is built not on romance or vintage 'character' but on clinical performance: people love it because it delivers razor-sharp, distortion-free 1:1 macro results at a price that undercuts the big names.
Verdict: The Sigma 105mm f/2.8 EX DG Macro is a clinical, high-resolution 1:1 macro for photographers who prize detail, neutral colour and clean geometry over painterly rendering. It is one of the sharpest lenses in its class, essentially distortion- and vignetting-free, and handles flare well — making it excellent for macro, product and detail-driven portraiture. Buyers should accept its trade-offs: bokeh that is good rather than class-leading, slow hunting autofocus, and, on this A-mount version, fragile internal gearing and an awkward hood. If you want accuracy and sharpness at a value price, it delivers; if you are chasing dreamy vintage bokeh, look elsewhere.
Community Insights
What people love
- Exceptional, razor-sharp resolution — sharp wide open at f/2.8 and corner-to-corner even on full-frame, earning an aggregate 4.88/5 sharpness score and comments like 'the sharpest lens I own.'
- Clean optics with virtually no distortion or vignetting, ideal for 1:1 macro and reproduction work.
- Well-controlled flare thanks to the deeply recessed front element, with essentially no colourful ghosting artifacts.
- Solid build quality with the attractive premium EX finish.
- Strong value as a true 1:1 macro that competes with the Tamron 272E and Canon 100mm macro at a lower price.
What people dislike
- Fragile plastic internal gearing on the A-mount version, widely reported as prone to stripping.
- The screw-in hood is widely disliked because it blocks access to the front cap.
- Slow autofocus that hunts in low light.
- Bokeh that some find only 'OK' and not quite as smooth as the Tamron 272E or Canon 100mm macro, with slight outlining of high-contrast edges when stopped down.
- Susceptibility to veiling flare that can wash out contrast when a bright light sits near the frame.
Pro Tips
- Shoot it wide open at f/2.8 with confidence — it is already razor-sharp there and gains only marginally from stopping down, so you can prioritise subject isolation.
- When bokeh smoothness matters, favour f/2.8; the out-of-focus rendering is at its creamiest wide open, and stopping down can introduce slight outlining on high-contrast edges.
- Guard against veiling flare by keeping bright light sources out of or shaded from the frame — the recessed front element handles most stray light, but a strong in-frame light can wash out contrast.
- In low light, expect slow, hunting autofocus; switch to manual focus for macro work, where precise focus placement matters most anyway.
- For 1:1 macro, use a tripod and stopped-down apertures to manage the razor-thin depth of field, and rely on its near-zero distortion for flat-field reproduction and copy work.
Sources (4)
Sigma 105mm F2.8 EX Macro A-mount lens reviews — Dyxum
Sigma 105mm F2.8 EX DG Macro review — Tobias Hjorth
Sigma 105mm f/2.8 EX DG Macro Lens Review — The-Digital-Picture
Web research
The Sigma 105mm f/2.8 EX DG Macro is a clinical, high-resolution 1:1 macro for photographers who prize detail, neutral colour and clean geometry over painterly rendering. It is one of the sharpest lenses in its class, essentially distortion- and vignetting-free, and handles flare well — making it excellent for macro, product and detail-driven portraiture. Buyers should accept its trade-offs: bokeh that is good rather than class-leading, slow hunting autofocus, and, on this A-mount version, fragile internal gearing and an awkward hood. If you want accuracy and sharpness at a value price, it delivers; if you are chasing dreamy vintage bokeh, look elsewhere.
https://www.dyxum.com/reviews/lenses/Sigma-105mm-F2.8-EX-Macro review157.htmlhttps://www.tobiashjorth.com/sigma-105mm-f2-8-ex-dg-macro-review/https://www.the-digital-picture.com/Reviews/Sigma-105mm-f-2.8-EX-DG-Macro-Lens-Review.aspx