Tagged with rainbow - Personal View Talks

Which CCTV lens for wide angle fisheye use ?

TruHype — Fri, 26 Jul 2013 05:31:26 +0000

Hello everyone,

I've recently started to get interested in C mount (CCTV) lens, for they are fast, wide, and cheap. So I wondered, is there any CCTV lens that I could use as a Fisheye (and get the same effect as the Panasonic 8mm f3.5, but faster) ? Here's a few lens I've found looking on the internet :

Rainbow 3.5mm 1.6
Tamron 4-12mm 1.2
Pentax 6mm 1.2 (+ wide conversion lens x0.45)

Wanted effect :

The GH2 exact m4/3 sensor crop is x1.86.

So I would like to get the same widness as the Panasonic 8mm or any 8mm Fisheye (Samyang, Peleng, Rokinon...) :

Panasonic 8mm : 8 x 1.86 = 14.88mm equivalent (no need for ETC mode)

Rainbow 3.5mm : 3.5 x 1.86 = 6.51 -> 6.51 x 2 = 13mm equivalent

Pentax 6mm : 6 x 1.86 = 11.16 -> 11.6 x 2 = 23.2mm equivalent -> 23.2 x 0.45 = 10.44mm equivalent

x 1.86 : GH2 Sensor Crop

x 2 : ETC tele conversion mode crop (to cover vignetting)

x 0.45 : Wide convversion lens

Does that mean we could use any CCTV c mount lens instead of the Panasonic lens to get the wide fisheye effect ?

A few videos :

Lenses :

C mount lens (1/2") work well on the GH2, but I heard that the CS mount lens (1/3") would still have really heavy vignetting because even with the ETC mode it would not cover entirely the GH2 sensor. Is that true ?

Interesting CS mount lens, but 1/3 inch : http://www.ebay.fr/itm/TAMRON-Manual-Iris-CCTV-Lens-3-0-8mm-1-1-0-ASPHERICAL-C-Mount-3-Mega-Pixel-/261248954560?pt=UK_CCTV&hash=item3cd3a6b0c0

I would use the fisheye to film Skateboarding.

Thank you.

FS: GH2 with a lot of accessories and lenses.

tnt2000 — Sat, 26 Oct 2013 16:38:29 +0000

Hi everyone,

I'm selling my GH2 with a lot of accessories and lenses. I bought everything new to start shooting some short films about an year ago but ended up never having time so it's time time to let it go!

Panasonic Lumix GH2 with kit lens 14-42mm - Barely used (shutter count about 3400) and comes with all original accessories and box

4x extra batteries

Gini GH2 cage - Barely used.

Lens mount adapter (Nikon to M43) - Barely used, comes with support bracket (from ciecio7 - ebay).

Rainbow H6X8-II 8-48mm f1 lens - New with M43 mount, front and rear caps. It was only used when the M43 mount was installed (to adjust infinite focus).

16x9 EX HD7X62 0.7x wide angle adapter (62mm front diameter) - Great condition and comes with both caps, a pouch, a 52mm to 62mm step up ring and a 82mm to 77mm step down ring.

LCD magnetic view finder - Barely used

JYC Digital Timer Remote Control - New with original box and batteries

Audio cable adapter (3.5mm to 2.5mm jack)- New

2x Cinematic Gear Rings (60-70mm and 80-90mm) - New with boxes

All for 850.00 GBP or best offer (shipping included). PM me if you are interested.

Cheers

Rainbow -mm-48mm H6X8 C-Mount to GH2 (or Other Mcro 4/3) Lens for Sale

questech — Mon, 16 Jul 2012 16:18:13 +0000

This is a brand new lens that I adapted to use with my Panasonic GH2.

It is a non-destructive modification, unlike some that you may have seen on the web.

In order for the C-Mount to M43 adapter to fit on this lens, some modifications, including removing a plastic housing were required.

I have included more information, photos, and a video in my eBay listing.

This is a great little lens that feels like a quality product in your hands. It's FAST at f1.0 and versatile.

It requires the use of ETC Mode on the GH2, or similar functions on other cameras, or a teleconverter.

Because I'm going to refer you to my eBay listing, if you have any questions, you can reach me through eBay and I'll respond to you.

The "Buy it Now" price is $245 and the starting bid is $155.

Thanks!

http://tinyurl.com/6vhm9hr