Another boring lens test post

Okay, I bought a Canon 50mm f1.8 EF lens. I would not have done so if a 40% off the lowest regular price around sale had not come up. I especially would not have done so if I’d known about the unexpected $250 in vet bills that came up afterwards or the unexpected $186 in other expenses or the price of gasoline going back over $2 per litre. Let’s face it; if we could see the future we’d all win the lottery.

But it seems every Canon owner has one of these lenses so … why not me? Just how good is it anyway?

50mm on the 1Ds.
40mm on the 1Ds.

The quality is almost identical to the 40mm ‘pancake’, and indeed it’s not much bigger. For general shooting, both are ‘good’ but neither are ‘excellent’. In fact not only does the classic Super Takumar 50mm f1.4 utterly destroy them in sharpness, the venerable Nikon P610 is also noticeably better (when it actually manages to get a correct focus lock, which is rare these days). This is the sort of thing that makes me want to try a Nikon DSLR.

Now let’s see the two lenses on the crop sensor Canon T100 (from the same place):

40mm on the T100 – about 64mm equivalent.
50mm on the T100 – about 80mm equivalent.

(You may notice the T100 overexposes and the colours are not as rich.)

How is the 50mm for really close-up sharpness?

On the T100 – notice focus did not lock in the right place.
Segment of 100% image at the sharpest area.

Of course these were taken wide-open to give it the toughest test. Again, it’s good but not excellent. Frankly I expect better from Canon. Oh I get it: you’re supposed to spend the big money and buy their top quality lenses instead of spending reasonable amounts and getting mediocre results. That’s another shoot-yourself-in-the-foot strategy from Canon, which goes with their no-third-party-RF-series-lenses announcement. They don’t seem to get the idea of “brand = reputation” and that people will accept lower quality from ‘off-brand’ makes at lower prices but won’t accept lower quality from ‘name brand’ makes at any price. (I have seen this failed marketing strategy before, as in when certain car makers introduced junky low-priced cars to ‘compete’ with the import makes when all they wanted was to get people into showrooms and talk them into higher priced, higher profit vehicles.)

So it’s not the best lens, but can you take a good picture with it?

Evening sky with the 50mm on the 1Ds. No adjustments other than sizing.
Fuzzy seeds with the 50mm on the T100. Cropped and sharpened.

Yes, I guess so. Although it seems to work better on the 1Ds (full frame) than on the T100 (crop sensor). The ‘medium’ focal length afforded by the 1.6 factor on the APS-C camera puts the lens in a range I don’t normally use. Frankly it’s a little disappointing over-all, like every purchase I’ve made lately.

Anyway … Once this holiday weekend is over it’s on with the wood harvest (a couple more loads at most) and then close up the cabin for the season.

Marley finds lens testing boring.
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2 thoughts on “Another boring lens test post

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