Head-to-head · Sony E → Nikon Z
Megadap ETZ21 Pro vs Techart TZE-01 — Sony FE to Nikon Z with AF
Both put Sony FE lenses onto a Nikon Z body with PDAF, Eye-AF, in-lens IS pass-through, and electronic aperture. Megadap has the broader maintained compat list and faster firmware cadence; Techart costs slightly less.
Side-by-side specifications
| Spec | Megadap ETZ21 Pro Megadap · 2022 | Techart TZE-01 Techart · 2022 |
|---|---|---|
| Lens side | Sony E | Sony E |
| Body side | Nikon Z | Nikon Z |
| Release year | 2022 | 2022 |
| Body-side contacts | 11 pins | 11 pins |
| Firmware-updatable | Yes | Yes |
| Weather-sealed | No | No |
| Has glass (focal reducer) | No | No |
Differences that matter
Compatibility list depth is the cleanest split. Megadap publishes a maintained per-lens chart covering native Sony G / GM glass plus most Sigma DG DN (Art / Sports / Contemporary) and Tamron Di III lenses; Tamron G2 zooms (28-75 G2, 70-180 G2) were added in v2.0. Techart's compat list is shorter and Tamron + Samyang AF lenses sometimes lag a firmware revision behind Megadap.
Subject-detect AF on Z8 / Z9: Megadap added Animal / Bird subject-detect AF on Z8 / Z9 / Zf in v3.0 firmware (2024). Techart added animal subject detection in v3.0 too, but the bird / vehicle subset lags. For wildlife shooters chasing subject-detect AF on Z9, Megadap currently leads.
Both update over USB-C and ship at a similar 2 mm flange-clearance thickness (E 18 mm → Z 16 mm), so both are thin rings. Heavy 70-200 / 100-400 zooms should be supported by the lens collar on either adapter, not the adapter ring.
Price gap is small but real — Techart TZE-01 typically lists 15-20% under Megadap ETZ21 Pro at retail. For a Z6 II / Z7 II owner adapting a handful of FE lenses, the saving may matter. For a Z8 / Z9 owner where subject-detect AF on FE telephotos is the point of the exercise, Megadap's firmware lead pays for itself.
When to pick which
Pick the
Megadap ETZ21 Pro when
- You own a Z8 or Z9 and want Animal / Bird subject-detect AF on adapted FE telephotos (FE 200-600 G, FE 100-400 GM, FE 400 f/2.8 GM, Sigma 100-400 DG DN, Sigma 150-600 DG DN Sports).
- Your bag includes Tamron Di III G2 (28-75 G2, 70-180 G2). Megadap's v2.0 firmware was where these landed first.
- You want the faster firmware cadence — Megadap pushes lens-compat additions every 6-12 months; Techart's cadence is ~12-18 months per major revision.
Pick the
Techart TZE-01 when
- You shoot mostly Sony G / GM glass on a Z6 II / Z7 II (not Z8 / Z9) and don't need the latest subject-detect tuning. Both adapters cover this case well; Techart saves the price gap.
- You only adapt one or two FE lenses and the broader compat list isn't a meaningful differentiator for your bag.
- You're budget-sensitive and the Megadap's price premium isn't justified for your use case.
Common questions
- Does Eye-AF work on the Nikon Z9 with adapted Sony GM lenses through either adapter?
- Yes on both, with current firmware. Megadap added Z8 / Z9 Eye-AF subject tracking in v2.0; Techart's TZE-01 added Z8 / Z9 single-point + Wide-area AF tracking in v2.0 and Eye-AF expanded in subsequent revisions. Megadap's Animal / Bird subset is slightly broader on Z9.
- Will my FE 200-600 G OSS autofocus on the Z9 through these adapters?
- Yes through both — Sony's FE 200-600 is one of the most-tested adapted telephotos in this category. Megadap's v3.0 firmware specifically refined continuous-AF on Sigma 100-400 / 150-600 DG DN; Techart works for static and slow continuous but tracking lags on fast-moving subjects.
- Is OSS preserved through these adapters?
- Yes — both forward stabilisation commands so OSS-stabilised FE lenses keep their native IS behaviour on the Nikon Z body without conflicting with Z-body IBIS. The combined stabilisation is comparable to a native Z lens with VR.
- Why is the adapter so thin? Won't it bend under a heavy lens?
- The 2 mm thickness reflects the 2 mm flange difference between Sony E (18 mm) and Nikon Z (16 mm) — that's all the room there is. Heavy zooms (70-200 / 100-400 / 200-600) must mount via their own tripod collar to take the weight off the adapter ring. This is true for both adapters; neither will hold a kilogram of glass on a Z body's mount without distortion.
Open the individual adapter pages
- Megadap ETZ21 Pro — full spec, firmware history, per-lens compat notes
- Techart TZE-01 — full spec, firmware history, per-lens compat notes
- Sony E to Nikon Z adapter page — every adapter for this mount pair, verdict, format notes
Keep exploring
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