Why do major manufacturers like Canon, Nikon, Sigma not make manual lenses?

[JacaRanda]

Opportunity Cost - Opportunity Cost Definition | Investopedia

 

[Gavjenks]

your statement is clearly from someone who has never published in an academic journal or even anything remotely close.

I am about to turn in my 2nd revision on a paper to Cognitive Science later this very week. So yes, considering I was working on peer review amendments about an hour and a half ago, I am aware that papers are peer reviewed. I'm not sure what the point of you bringing that up was, other than to be, as you say, "sensationalist" and to fit with all of your other extremely professional-sounding swearing and personal attacks.

Anyway, I can't speak to Engineering journals, but in Psychology and other cognitive sciences I follow (neuroscience, linguistics, etc.) make super unjustified claims all the time. A typical example would be ruling out that connectionist models are capable of capturing XYZ behavior, and then giving one or two examples of specific connectionist models that they tried and that couldn't capture it, without addressing the other 800 out there.

I can give you specific citations for papers that have done that in PMs, if you like.


Whether this is a productive thing or not -- now that part is just my opinion. But the fact that it happens is plain. And yes, if that author had a connectionist as a reviewer, they'd be screwed. But most of the time, you don't have a connectionist, especially if it's just one of 3 or 4 contrasting models you are looking at, for instance. The non-specialists will mostly have heard of the 1 or 2 specific examples you did include, and will nod their heads and move on, thus it gets published.

Image is part of the factor as well as streamlining ones market range. Yes you could sell everything, but sometimes you have to cut back and simplify your line up for new users. You also have to consider that the combination of DSLR and lens is designed to be a single operating unit; if you then throw in a wildcard of a manual focusing lens line up you'd have to then also throw in additions to your DSLRs to support that intended use.

In the end Canon and Nikon don't want to make these lenses in the current market; they'd much rather focus their production toward a different market. Yes that means they are leaving a market segment out, but they are not trying to chase every market segment

That's a fair and convincing description.

 

[Overread]

OMG, this thread makes me wanna just...just...just...

End it all! End the madness!

View attachment 53348

WHERE'S THE BACON?!

 

[Gavjenks]

The key is in the guesstimating. It's an extremely powerful way of looking at the world, but it cannot produce information from nothing. It's a good way of thinking that can extract the good stuff a lot of the time, but there has to BE some good stuff.

The actual data being inputted is in this case:
1) Amazon review numbers
2) The majority of personal photographers I know who would mostly recoil in horror at the idea of buying a lens that is likely to fall apart, even within warranty
3) The same from everybody I know on this forum. I don't recall any regulars here ever suggesting people buy a lens that might fall apart, just because it's cheaper and protected by warranty. I DO recall the opposite being suggested many times.

#1 (as well as Rokinon's rolling out of new models consistently and seeming expansion) is being used as evidence of some reasonably sized manual market, and #2-3 are being used as evidence that most people prefer non junky lenses.

Combine the two together, and you get a set of prior distributions like what I said the most likely table was of those 3. (a sharp, but not completely one-sided gradient from auto to manual, and a sharp, but not completely one-sided gradient from quality to junky)




But anyway, as mentioned in the above post, I think the "streamlining market" is pretty convincing, which a few people have jabbed at in the last page or so.

 

[table1349]

Now if you'll excuse me, I have Zooey Deschanel's agent on the line.....

HELL YEAH BABY!.....That's what I'm talking about. :bounce: :hail: :thumbsup: :smileys:

 

[table1349]

OMG, this thread makes me wanna just...just...just...

End it all! End the madness!

View attachment 53348

WHERE'S THE BACON?!

The Heck with the Bacon.................WHERE IS ZOOEY DESCHANEL???

 

[table1349]

I do believe that I have discovered the problem with this and several other threads.

The object of discussion:


Our definition of the object of the discussion: COW

As Gavjenks would define the object of the discussion:

A completely automatic milk manufacturing machine. It is encased in untanned leather, and mounted on four vertical, moveable, supports. One on each corner.
The front end contains the cutting and grinding mechanism, as well as light sensors, an air inlet and exhaust, a bumper, and a foghorn. At the rear is the dispensing apparatus and an automatic flyswatter.
The central portion houses a hydro-chemical conversion plant. This consists of four fermentation and storage tanks, connected in series by an intricate network of flexible plumbing. This section also contains the heating plant complete with automatic temperature controls, pumping station, and main ventilating system. The waste disposal apparatus is located at the rear of this central section

In brief the extremely visible features are: two lookers, two hookers, four stand-uppers, four hanger-downers, and a swishy-whishy.

:mrgreen:


FYI....Credit goes to the late great Jerry Clower, a truly intelligent individual as ever did live.

 

[Derrel]

^^ OMFG, I spit coffee onto my screen when I read that! Damn you, g-99!

 

[table1349]

^^ OMFG, I spit coffee onto my screen when I read that! Damn you, g-99!

Well it could have been a McDonalds French Fry! I have taken a solemn vow never to read any of Helen's posts when I have food or drink in my mouth. She has the makings of a great Smart @$$!

 

[Overread]

And I think we are done least we end up with way too many CSC appearing in the thread for the good of peoples health and keyboards/monitors. Now off you all scamper and get some photos




CSC = Coffee Spitting Comments