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09-22-2023, 10:35 PM
... manual focus ...
https://ttartisan.myshopify.com/products/500mm
Chief Editor - opticallimits.com
Doing all things Canon, MFT, Sony and Fuji 
09-23-2023, 07:00 AM
My personal experience at 300mm and longer, a fast autofocus changes the whole thing. However, if autofocus isn't really fast, it's useless...
09-23-2023, 07:02 AM
PhillipReeve reviewed it and the result is delusional (tons of chromatic aberrations):
https://phillipreeve.net/blog/review-ttartisan-500mm-6-3-ed-if/ But it's decently sharp and has a good bokeh, so for that price I think it's a good option for beginners, surely much better than the usual mirror lens...
stoppingdown.net
Sony a6300, Sony a6000, Sony NEX-6, Sony E 10-18mm F4 OSS, Sony Zeiss Vario-Tessar T* E 16-70mm F4 ZA OSS, Sony FE 70-200mm F4 G OSS, Sigma 150-600mm Æ’/5-6.3 DG OS HSM Contemporary, Samyang 12mm Æ’/2, Sigma 30mm F2.8 DN | A, Meyer Gorlitz Trioplan 100mm Æ’/2.8, Samyang 8mm Æ’/3.5 fish-eye II | Zenit Helios 44-2 58mm Æ’/2 Plus some legacy Nikkor lenses.
09-23-2023, 04:35 PM
He must hire Rover as proof reader, the lens has a maximum aperture f6.3 yet they measured vignetting at f5.6 !!! this would never happen here
09-24-2023, 03:11 AM
Strangely what the reviewer doesn't comment on in those distant views in this review, is sharpness, he just shows 100% crops ..... the images don't look sharp to me and the contrast levels are low ..... the images look like they are from the past ...
spend a little more money on a used Tamron or Sigma 150-600mm and get a thoroughly useful range of focal lengths with AF and stabilization that produce crisp detailed contrasty images even at 100% crops on APSc ..... and save on the tripod. The reviewed lens is next to useless!
09-24-2023, 06:16 AM
(09-23-2023, 04:35 PM)toni-a Wrote: He must hire Rover as proof reader, the lens has a maximum aperture f6.3 yet they measured vignetting at f5.6 !!! this would never happen here That gives me idea of getting to proofread the entire site. I actually approached Markus with this once, on Facebook, and got started, but never finished it for some reason. I keep seeing typos in old reviews I'm sometimes reading for fun, but can do squat about it. :-)
Well, the new portal will start Jan 1st ... ;-)
(but we'll not migrate ancient reviews)
Chief Editor - opticallimits.com
Doing all things Canon, MFT, Sony and Fuji
The plan is to move the current portal to photozone.de and the new one to opticallimits.com so nothing is lost.
Ancient is basically the DSLR stuff (except 50mp EF) and the obsolete mirrorless reviews (e.g. the 14mp Sony E and 12mp MFT).
Chief Editor - opticallimits.com
Doing all things Canon, MFT, Sony and Fuji |
