Iron Glass Rehoused
Phénix 28-70mm T2.7 Zoom
The “Impossible” Zoom, Reborn
- Focal
- 28–70mm
- T-stop
- T2.7
- Mount
- PL
Ancient Optics Rehoused
Full Frame · PL Mount
35 – 105mm T3.7 PL
The definitive mid-range vintage zoom companion for Canon K35/FD primes.
Features matching Canon S.S.C. coatings for identical gold and purple flares. The multi-format conversion, from FF 35-105mm to S35 24-75mm with a built-in speed booster, takes 10 minutes and a screwdriver. Close focus improved by nearly two feet from the original.
Character profile
Pentagonal bokeh. K35-matched. Dual-format.
Five axes plotting how this set behaves wide-open vs a neutral modern reference. Larger area = more pronounced trait.
Talking points
Seamless match for Canon K35 or FD primes.
Same coatings, identical flare character
Unique pentagonal bokeh from original 5-blade iris (intentionally preserved)
Multi-format: 35-105mm T3.7 FF or 24-75mm T2.9 S35 via quick swap
Close focus improved from 4'6" to 2'9".
A major practical upgrade
Technical
Some figures here are marked *. Our sources disagree on those, so we're checking them against the lenses themselves. Ask us and we'll measure it for you.
Heritage
Origin
The Canon FD 3X zoom was a workhorse of Canon’s FD-mount era (1971–1992), originally covering 35–105mm at T3.7, a popular mid-range for documentary and TV. Same SSC (Super Spectra Coating) chemistry as Canon’s celebrated K35 cinema primes from the same period.
Filmography
Widely used across 1970s–80s documentary and news production in its original FD-mount form. In rehoused cinema form it’s the natural mid-range companion to the Canon K35 prime set.
Build
Ancient Optics’ rehousing preserves the original SSC coatings for matched flare and colour against K35 primes. The original 5-blade iris is kept intentionally for the signature pentagonal bokeh. Multi-format conversion via a swappable built-in speed booster: 35–105mm T3.7 Full Frame or 24–75mm T2.9 Super 35, 10 minutes and a screwdriver. Close focus improved from 4'6" to 2'9".