With Canon 650D specification, digicam.info also leaked Canon 40mm pancake and 18-135 STM Specification, The new 18-135mm STM lens have a Step motor not silent wave motor,
Features in the new lenses with the STM
- Both new lenses (40mm & 18-135mm) features STM
- the new STM AF drive is a smooth and quiet,
- more control is adopted by micro-step drive mechanism
- lens noise is reduced for video recording
see the details below translated by google,
EF-S18-135mm F3.5-5.6 IS STM [see image above]
– […] new focus by (STM) stepping motor and six-group zoom
– Greatly improved performance [of] video AF
– AF achieve smooth video recording of a moving subject in combination with the EOS Kiss X6i[Rebel T4i/EOS 650D]
– Adopted a single sheet and high-precision aspherical lens 1 UD lens, achieving high image quality compared with conventional models
– The first with a dynamic IS valid when shooting motion
– Stage 4 minute camera shake correction in terms of shutter speed
- EF40mm F2.8 STM specs [see image below]
– The thinnest and lightest lens in the EF line-up
– […] smooth and quiet AF drive [adopting a] (STM) stepping motor
– 22.8mm Length
– 130 grams in weight
– […] one glass mold aspherical lens
– 7-blade circular aperture
– noise reduction control is [achieved] adopt[ing a] micro-step drive to the diaphragm mechanism
– Minimum focusing distance is 0.3m
– full-time manual focus adjustment is possible to focus one-shot AF
remember these are rumored specification, full announcement is coming soon
