I used to use the 50mm f2.5 on my EOS 5 (a2e) never made as much sense when I went digital, I tested it along side a 60mm ef-s and a Sigma 70mm f2.8..
The 50 had terrible chroma wide open on high contrast areas, maybe an artefact of digital as I don't recall it on my film shots, I was onto and still frequently using my EOS 3 by then, which ruled out the 60mm, so I tried the 70mm. A little unusual on ff, but perfect on my 400d, and pretty flawless optically. All 3 were slow at the macro range, but the limiter on the sigma, and the usm on the 60 made them viable for portraiture etc, the 50 was just slow and nasty.
I also owned a 135mm f2.8. Equated to a fast 200mm on my 400d. Fast in terms if light at least, but the old afd motor was grim. Nice images with the sf dialled out, I got rid of it when I noticed a hazy optic one day... yup, you guessed it, the early cersions had a hazy ekement to help with the sf technique, on later productions the element was less obviosly hazy.
Never used the 50 f1.4. Went with the sigma instead, which is about to become a 62mm f0.9, along with my 43mm f0.9 and my 105mm f0.9 thanks to my new panny g7 and metabones speedbooster xl.
The 50 had terrible chroma wide open on high contrast areas, maybe an artefact of digital as I don't recall it on my film shots, I was onto and still frequently using my EOS 3 by then, which ruled out the 60mm, so I tried the 70mm. A little unusual on ff, but perfect on my 400d, and pretty flawless optically. All 3 were slow at the macro range, but the limiter on the sigma, and the usm on the 60 made them viable for portraiture etc, the 50 was just slow and nasty.
I also owned a 135mm f2.8. Equated to a fast 200mm on my 400d. Fast in terms if light at least, but the old afd motor was grim. Nice images with the sf dialled out, I got rid of it when I noticed a hazy optic one day... yup, you guessed it, the early cersions had a hazy ekement to help with the sf technique, on later productions the element was less obviosly hazy.
Never used the 50 f1.4. Went with the sigma instead, which is about to become a 62mm f0.9, along with my 43mm f0.9 and my 105mm f0.9 thanks to my new panny g7 and metabones speedbooster xl.
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