Hi all,
some very informative threads on here about mirror lenses!
Here are two more links on tests.
Maybe
Ben is just right about his Tamron 500,
Mirror Lenses - how good? Tamron 500/8 SP vs Canon 500/4.5L
The result is against the grain of the other tests (or it means that the Tamron is just really good)
Other tests I've seen always put the mirror lenses way down below refractive ('normal') designs, like here,
Lens Comparison Photo Gallery by Token at pbase.com
Tokina mirror lens 500/8 on K100D + tripod
Ivoire,
many thanks for pioneering a little in the Tokina thread and also not missing out on the obvious downside of a mirror lens design.
That same
Tokina 500/8 fell in my hands, so I gave it a try. I have found it very hard to shoot without a tripod, but possible if you support the cam/lens by a lamp post or similar - OTOH before too long this will ruin your lens paint (it was mint when I got it, oh oh ;-). The genuine skylight filter was included and stays on the back.
I am basically looking for an inconspicuous walkaround lens, and that is why I wanted to try the Tokina. So far it turns out that 500mm is too long. The K100D shake reduction does a good job, but here it's over the limit. Also, at close distances the SR starts a low frequency buzz / flurring sound which does not sound healthy (pics are blurred when this happens).
Resolution / Contrast / Sharpness / IQ: However you call it, this lens (and FWIW all mirror lenses?) has noticibly less of it than those 'normal' lenses. Allright, no cropping, lots of light needed, take anything to improve this. But: If you can crop a 240mm image to the same quality as from the Tokina, what's the point? For me that would be still an argument, as that 240mm 'normal' lens is still 2 or 3 times physically longer than the mirror lens.
Conclusion: Looking for a small 300ish mirror lens.
-
Rubinar 300/4.5 is too big and heavy, although it looks like on top IQ-wise. Diameter is definitely beyond the 'digital flash beak'. Wonder if you'd get infinity.
-
Minolta Rokkor 250/5.6 mirror: Saw one go on the bay recently, around 200 euros, mmmh. (would be my ideal solution, tiny lens, reportedly good IQ)
- Ohnar 300mm: Seems too exotic to bother looking for it (IQ?)
Happy holidays,
Georg (the other)
Last edited by georgweb; 12-26-2008 at 03:18 PM.