…Make a "Bad" lens with an aperture in the 1.4 to 2.8 range.?
…
How many lens in the above f/stop range were a crappy lens.?
Thank You
On paper, none. They are all closely related in design form and correction of aberrations, with variations due to performance-external considerations of cost, available glasstypes available at the time, weight requirements, etc.
The biggest differentiator then, from an optical design perspective at least, is consistency of quality across a production run. Is there a wide variation of performance from lens to lens in a production run? Or were the fabrication and assembly tolerances tighter to ensure the worst performer is not far off from the best performer in a run? Tolerances in general would have improved over time as manufacturing quality improved — esp after the mid 1980s when Quality Control became important in manufacturing. This in particular is why you see improvements in quality amongst lenses of that time period or newer even though the prices remained the same.
By now it’s no secret which lenses out there have a better reputation. The performance reputations within the bounds of your question are built upon quality control in manufacturing, rather than differences in the designs themselves. So like the Nikon 50 f/1.8 is a consistent performer, as indicated by the fact most people will agree as such (implying most lenses out there are good performers…ie consistent production quality). On paper, however, it’s one of the more simplistic double gauss designs.
As mentioned I’m speaking to optical quality, which along with ergonomics factors into what is subjectively considered “best”.
In 21st century you see 50mm lenses with 11 elements , 12 in 10, 13 elements and it looks like ultra wides especially have gone to a whole new level way beyond what was previously possible. Everything you buy now is filled with asph elements too.
Did we break through some barrier in lens design in 21st century?
Quality of photograph is not associated with lens it was taken with (aesthetics, not technicalities).Other than that,...... Is it likely that a 105 2.8 going to be a total dog, but the f/2.0 is going to win you a Nobel Prize.?
Fast 35mm wide angle lenses — 40mm focal length or shorter — are inherently more complex.
The cost barrier for consumer photography lens manufacturing is the barrier that we’ve broken thru, if anything. Chinese manufacturing & glass fab lowering costs, coupled with (very recently) better tools to analyze tolerances and relax them while maintaining better performance are probably the key drivers.
Outside of consumer photography, in industries where cost isn’t an issue, those “new” design aspects have been around for decades, refinements are continuously taking place in those venues to drive down manufacturing costs for things like aspherics (as an example). In a word, progress.![]()
................ I was not talking about JUST a 50mm +/-.
When i see the question asked, it is not just about One Focal Length.
The question that see asked, repeatedly, is..........."Recommend a lens" or "What is a good lens for" ......pick a 35mm camera brand.
I suppose THAT is what i find so confounding.
From 24 to 200 and f/1.4 to f.2.8 ........................ If a person had no lens at all and just simply guessed, are they really going to pick such a bad lens.?
Generally speaking, the price increases as the speed of the lens increases.
Other than that,...... Is it likely that a 105 f/2.8 will be a total dog, but the 105 f/2.0 is going to win you a Nobel Prize.?
Well if you want to get down to it, optics are very labor intensive. When your assemblers work for slave wages, then yes, the resulting optics are going to be very cheap and with poor quality control (consistency of performance from lens to lens).
There’s nothing really cutting edge about that.
I see these threads, frequently.
Somebody buys an SLR of a brand, or mount, they have not owned previously and they ask for a "Lens Recommendation".
Did..........
Minolta
Nikon
Leica
Olympus
Pentax
Canon ...........
Make a "Bad" lens with an aperture in the 1.4 to 2.8 range.?
I ask this as a complete amateur. .
What are people concerned with................the lens will make color film look bad.....black and white film will have lousy contrast.?
How many lens in the above f/stop range were a crappy lens.?
Thank You
One thing I can assure you of Chip is that all the major marque lens manufacturers you mention in your post make better lenses than 99% of the users are photographers.
One thing I can assure you of Chip is that all the major marque lens manufacturers you mention in your post make better lenses than 99% of the users are photographers.
Certainly true for me.Painful but true.
Certainly true for me.
I have no interest in all the difference "Specs" of one lens over another.
I am a street photographer.
The topic of the photo itself is WAY MORE important than ANY perceived increase in the quality of rendering due to one lens or another.
I am not doing Fine Art Photography, or some type of Advertising/Commercial/Architectural work.
The v1 43-86 was not good.
But the v2 43-86 was just fine. v2 does not have the silver filter ring.
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