Sexiest topic on earth(not): lens adapters

SALESPERSON DEMONSTRATING C MOUNT ADAPTER

no-brand, well machined

(too) simple design

Ok, so it's not the most sexy topic in the world: adapter rings. An adapter is an adapter is an adapter, right? A simple piece of metal designed to connect two otherwise incompatible connectors. Yes and no. On the one hand it's supposed to do just that: connect two alien bodies. (it's getting sexier already...) But on the other hand: even simple little devices can vary enormously. Since yesterday I discovered some adapters are far more superior than others, even though they cost a lot less than some of their counterparts.

thicker metal, better grip

it works, but not great

Comparing the C mount to micro 4/3 adapters from Camdiox and a no-name one from this seller, I noticed that the no-name is much better machined, uses thicker metal and, perhaps most importantly, the outer ring has a very nice 'grip-design' that lets you attach and detach your lens with ease. It's the difference between disposable design and craftmanship. At US $8 including shipping this ring is highly recommended. I give it 4 stars: **** (out of five- always leave room for improvement...)

grip and thickness difference

Review: C mount 4-12mm Tamron 1.2

Here's a kid who's made a nice, thorough video review of this C mount lens on the Panasonic GH2. Also interesting information about using C mount lenses in general and surveillance lenses (such as this Tamron) in particular. Only critique I have is that there's no link to a seller of this lens! (he mentions he bought it for around 90,- but didn't say where)

The Great Adapter Shootout

You have two C mount to Micro 4/3 adapters. One costs 17,67 euro, the other 7,50. Is the expensive model twice as good? Is is superior build quality? Better fit? Filmersblog took these babies to the limit and came with some suprising results...

First off, the adapters were weighed and measured for thickness. Next, they were scrutinized by a panel of experts consisting of my wife and I to see if different designs and metals were used and if they had any imperfections. And finally, they were mounted to a GH2 with a Pentax 6mm and Wollensak Cine-Velostigmat.

Outcome:

• Weight and thickness: no difference
• Design: no difference
• Imperfections: no difference
• Materials used: no difference
• Functionality: no difference

Et voila our shocking conclusion of the Great Adapter Shootout, Edition One. For a simple C mount to M43, the model that costs 133% more is not even a fraction better than the budget model. However there seems to be another contender who uses different materials and at a whopping 42 euro's must be in a league of his own. Will this infamous Kipon adapter finally allow me to focus on infinity using my Pentax 6mm f1.2? Follow Filmersblog and find out in our next edition of the Great Adapter Shootout!


                                                   Find the differences

THE 17,67 MODEL

THE 7,50 MODEL

Cheap lens adapters

It should be fairly simple: you have a prime lens and you need an adapter to attach it to your digital camera. I don't need autofocus, electronic aperture control. Just a simple piece of metal to connect an old lens to a new camera. Well, nothing is simple...
I bought a few of these cheap adapters and never thought that they weren't 100% functional. Either they fit or they don't, I thought, rather simplistically. It turns out there's more to it than just that. The bad ones do not support infinity focus. I guess I have those.
I thought my Pentax 6mm wouldn't focus on infinity because the rear barrel needed more modification. I shaved it off so far I almost ruined the thing. But now I suspect it's probably the cheap lens adapter.... I ordered one double the price and see if that solves my problem! I'll keep you posted.

Footage of the Cosmicar-for-Bolex 25mm 1.4

Here's a little something I shot in the park with my recently acquired Cosmicar-for-Bolex lens. Excuse the shakes, it's all handheld. The second shot of the bike is with the 1:1 crop. Really like this lens: sharp, nice bokeh and colors. Obvious vignetting when stopping down. Really looking forward to shooting downtown with this lens (including a tripod). But when?! Anyone out there want to pay me for 2 weeks of carefree test-shooting?

Panasonic GH2 + Cosmicar 25mm f1.4 from Filmersblog on Vimeo.

Mailbox: is there a lens in this envelope?

I bought a 25mm f1.2 CCTV lens for 35 euro's and when I had to sign for an envelope, the last thing I thought was in there was a lens! This thing is so small and yet so light sensitive- how do they do that? It came with an adapter plus an adapter-for-the-adapter?! I tried mounting it with the two adapters but it wouldn't focus. When I just used the big adapter ring, it worked. The focus ring has no stop for infinity so you can just turn it around infinitely(!). On the aperture ring it just says 'open' and 'close' and there is a hard stop on both ends.
Vignetting is obvious when you open the lens up and disappears in crop mode on the GH2. I think for such a toy lens it produces nice images. Here's a few test shots I made. I'll try to post some night shots as well.



25mm 1.2 CCTV lens from Filmersblog on Vimeo.

35 euros: 25 mm f 1.2 lens on the way

I was looking for experiences from others in regards to mounting my 6mm f1.2 lens to my Panasonic GH2 when I came across another CCTV lens, a 25mm f1.2 including adapter and shipping, for only 35 euros. Pictures that were taken with the lens looked really nice and the seller told me I could mount this directly to my GH2. No drilling, shaving or machining! So I ordered it, out of curiosity. Will post footage as soon as I have it! Here's some still images made with this lens: