Adapter FUD?

[Guest thiswayup]

(Where FUD = Fear, Uncertainty and Doubt, with the implication that they are not justfied.)

 

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https://www.flickr.com/groups/fujifilmxe2/discuss/72157650359691610/

 

Avoid adapters without an added leaf spring, many are eliminating the part completely and cutting a slit in the lugs of the adapter which is supposed to act like a compression spring. The metal alloy however is rigid and not intended to be elastic or hold memory, eventually breakage will occur and metal shards will become unattached inside the adapter and threaten your lens, shutter, or sensor/sensor cover.

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Has anyone ever experienced this problem, or known anyone who did??? And are any brands of adapter to be especially avoid - sought out?

[Max_Elmar]

I'm not sure it really matters how you characterize this particular type of failure, but I have learned that if you buy cheap junk, it will probably fail on you, in the worst way, at the worst time. If you are insulated from these sorts of problems by wealth or attitude, don't worry about it. If your work matters and you care, don't skimp on tools - it's false economy.

[milandro]

the person who is talking above is probably speaking of adapters  for bayonet lenses, which might need being clicked to fasten it securely or de-clicked to unfasten it, by pushing a button or a prong on the side of the adapter.

 

I have only M42 adapters so there is not any such thing but I can see that nobody in his right mind should ever make a clicking leaf spring for the aluminum of the adapter body, since aluminum is not elastic. 

 

But I really think that this is a very rare ( if not a false) problem and at best limited to the cheapest of the line adapters.

[milandro]

af for cheap, my K&F adapter is cheap but very well made

[Guest thiswayup]

I'm not sure it really matters how you characterize this particular type of failure, but I have learned that if you buy cheap junk, it will probably fail on you, in the worst way, at the worst time. 

 

Well, yes - otherwise it wouldn't be junk. But cheap doesn't necessarily mean poor quality and expensive doesn't mean high quality. I'd bet on a $20 Casio against against most $5000 Tag Heuers. And I've also known the substantially the same product sell at $200 and $1000. Spending money is no guarantee of quality; knowing what you are buying is.

[Guest thiswayup]

the person who is talking above is probably speaking of adapters  for bayonet lenses, which might need being clicked to fasten it securely or de-clicked to unfasten it, by pushing a button or a prong on the side of the adapter.

 

I have only M42 adapters so there is not any such thing but I can see that nobody in his right mind should ever make a clicking leaf spring for the aluminum of the adapter body, since aluminum is not elastic. 

 

But I really think that this is a very rare ( if not a false) problem and at best limited to the cheapest of the line adapters.

 

Good point about M42 vs bayonets, but I don't follow your logic in the second sentence - no metal is "elastic", and I don't see why a metal being non-elastic  precludes it from being fitted with a spring based mechanism. Indeed, lots of rigid metal things are.

[milandro]

I beg to differ, plenty of metal is elastic ( what is often called “ harmonic steel" for example ).

 

I didn’t say that you cannot put a spring of harmonic or spring steel onto or into an aluminum adapter. I said, which is what I believe the quote says, that you cannot use the aluminum of the adapter as a material to be making the spring with. They have opposite qualities.

 

I am absolutely positive that It is possible to make a good product at a very reasonable price by applying the proper technology. I also believe that there are many reasonably priced adapters on the market.

 

The metal construction of te K&F adapter that Ive bought is equally well made, if not better, than the Zhonghy lens tubo adapter or the Kipon tilt adapter that I have and I have considered buying other adapters which were much more expensive and which weren’t any better.

 

Anyway there are people out there who would only buy the more expensive things of anything and that’s good for them.

 

One of the many purposes of a board like this is to ask around others who might have bought something before you buy it. If you are asking for a recommendation I am very happy with a €10 adapter made by K&F.

 

I am not the only one

 

http://www.dpreview.com/forums/post/56402374

http://www.sonyalphaforum.com/topic/384-a-good-brand-of-cheap-chinese-adapters/

 

@https://www.youtube.com/watch?v=Ari4WDnGKT8