My SLR Magic HyperPrime LM 50mm T0.95 Review!

Started Oct 12, 2012 | Discussions thread
SLR Magic Forum Member • Posts: 57
Re: My SLR Magic HyperPrime LM 50mm T0.95 Review!

macjonny1 wrote:

. I can assure you non of our lenses were prepared to be concrete floor from chest height prior to the workshop. This is the best test for build quality.

I would venture to say that most people would say that the best test for build quality is longevity of function and how well it functions over time.  A drop test although somewhat useful is not a useful measure of build quality to me at all.  If I drop a delicate object I am prepared to accept whatever consequences of that action.  I do however want my lens to function over time without falling apart.  Personally after these reports I would be very very worried about buying one of these.  A drop test would do nothing to reassure me about that.

To test if a lens function over time takes years. However, any lens need to be maintained for focus accuracy over time even if unused. The only test for build quality with immediate feedback is a drop test and our lens has been dropped by someone at the Steve Huff Los Angeles workshop from chest hight on concrete floor and still function properly. Maybe we someone can try a drop test with the other two 0.95 lenses to see how that would affect the lens. It is common for users to drop a lens or a bag on the table or floor. I say this because our lens has been dropped by users on the table at our shop and at Photokina by people trying the lens. It is a lot of psychological pressure when holding an expensive lens and when that happens lens gets dropped. For those who do not know the Noctilux and Canon f/0.95 lens are heavy lenses as well.

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