Rol Lei Nut

I have to (at least partly) disagree. I've done many day hikes (12+ hours) with Mindshift & F-Stop bags, including thousands of meters of climbs & descents, and found the comfort to be good. A ...

Do some more testing. Some handheld, some on a tripod with IBIS/OS turned off.

I'm recycling an answer I just made on another thread. What I don't like about my F-Stop bags is that they're back opening only. Apart from that, I find them to be very good and very comfortable to ...

F-Stop makes many bags similar to Shimoda, though maybe still back opening only. Mindshift has a side opening range, the Ultralight Dual, which follows the same philosophy, though with a fixed size ...

Among others, I have the Gitzo 1545T and the Manfrotto 190XPRO4. The Gitzo really is a great travel tripod. Its length, which is as long as you'd allow, is because it "only" has 4 segments. A five ...

The LA-EA3 won't AF on the 100 Macro. If you really have no use for AF, then avoid the LA-EA4, as they use a semitransparent mirror, which absorbs some light and can potentially get dirty, ...

Yes, there are a number of "dumb" adapters which will work. They have an unmarked diaphragm actuating ring, but you can easily add a strip of tape to them and mark out the effective f-stops. By ...

There is no simple answer. There are several factors involved, first a lens hanging straight down from a camera will exert far less force on the mount than a lens sticking out horizontally, because ...

I think not. They certainly look different. To the best of my knowledge, the earlier, non-HFT Zeiss or Rollei lenses were either single coated or had a different (presumably simpler) multicoating. ...

First of all, I wouldn't base any buying decision on a "test" by Tony Northrup. The new Sony seems to have several nice technical advantages, such as OS, a diapragm ring and internal zooming, but ...

In my experience, Zeiss T* (& the equivalent Rollei HFT) and Pentax SMC were the coating champions. Leica didn't have as good coatings, but often their lenses did well because of their optical schemes.

I've used the following on my A7RII (in roughly decreasing order of quality): -Canon EF 70-300 L (not kept because of size, weight & adapted AF performance) -Contax Zeiss 100-300 (Adapted, still ...

In M42, I'd second (or third) a Pentax Takumar or a Zeiss (Voigtländer) Ultron. If other mounts, then a Rollei/Contax 50 1.4.

As an experienced and frequent cyclist, I also find that too risky. It doesn't take a fall or an accident to do some damage, just any maneuver or turn which could cause the lens to swing out and ...

You could probably sell your Batis 21 & 35 for a fortune as fantastically rare collectors items (roll over Leica!)....   ;-)

Depends how badly affected it is. With a (n untreated) light case, you might just have reduced contrast, though it will certainly make flare situations worse. It's comparable to a light haze. A ...

The M-Rokkor 28 2.8 is a nice lens which plays well with a Sony FF sensor, is nicely sharp all over, but... Practically all have the "white spot" problem (not fungus). There are a few shops that ...

The Tamron 24 2.8 is "way sharper" than the Samyang 24 1.8? Certainly not my experience! I'd say sharpness is in the same ballpark, that is, both are very, very good. But the Tamron's extra bulk, ...

The Tamron 24 2.8 has awful distortion. On my A7RII, it was visible in the viewfider, even with "lens correction" enabled. Even worse, PP would crop out a substantial amount of what was shown in ...

In most cases, it shouldn't be necessary to return several lenses to get a good one. The exceptions are lenses like the Zony 35 1.4 or the early Voigtländer 15 4.5 FE mentioned, which evidently had ...