To be produced by accomplished Noktor lens-maker SLR Magic, the lens has so far been almost exclusively refferred to via comparison to a similar, fast lens by another prestige manufacturer.

This to[ic is to discuss the upcoming SLR Magic 25mm .95 lens on its own merits.

Those wanting to know which fast, 25mm lens to invest in might like to look at news item, Is the SLR magic 25mm f/0.95 better than the Nokton? - Personal View.

Discussion of fast 25mm MFT lenses at http://www.personal-view.com/talks/discussion/5910/which-fast-25mm-mft-lens#Item_4

• Sony 18-105 F/4 is a good contender, but its limitations are softness at the zoom extremes, and 18 is not very wide. It also has a very poor close focus distance.

• Zeiss 16-70 F/4 is sharp, and this may be the best option. Unfortunately its max aperture is also F/4.

From my understanding, neither sigma, tamron, nor tokina make E mount fast standard zooms. Have I missed any obvious contenders?

RARE: 16-160MM CONSTANT F/2 M4/3 CINEMA SPEED LENS IMMACULATE CONDITION

1. INFINITY FOCUS. The lens is made "parfocal", providing proper infinity focus. Minimum focusing distance with this lens is about 3 to 4 feet.

2. PRECISION GLASS. Manufactured in Japan, this zoom precision lens is nearly perfect in optical quality. As the photos demonstrate, the glass on this lens is stunning, though it only resolves 1080p.

3. PARFOCAL. With most zooms you lose focus as you zoom the lens. However, this lens maintains perfect focus throughout the entire zoom range of 16mm to 160mm. (See photos straight off GH2)

4. ZOOM. The zoom throw on this lens is about 55 degrees, the zoom barrel is tight with no play. It is smooth and a pleasure to shoot with.

5. VERY FAST. This is a constant F/2 lens which is an exceptional low light performer. An 8 blade aperture produces a nice round bokeh. The declicked aperture for silent, butter smooth operation. Aperture throw is 45 degrees.

6. NO VIGNETTING. As set up and tested on the BMPCC and the GH4 in 4K in UHD, there is no vignetting anywhere on this lens. This lens covers the 4K image circle on the GH4, but it only really resolves 1080p resolution, you need Canon Cinema lenses to resolve 4K… As you consider, remember that this lens has a CONSTANT aperture of f/2 all the way out to 160mm! Please be aware, the lens has better sharpness at F/5.6... F/2.0 wide open, like any lens, is relatively soft.

If you are interested in purchasing this lens from me, please send me a PM or contact me below... This lens is valued at $500USD, but I am willing to sell it for $400USD and free shipping because I know people like good deals! Besides, I need to buy a Canon XA35 so this lens will no longer be needed by me. You win!

Please visit https://www.dropbox.com/sh/6qy72l557o3h9em/AABsnc2nzu38jiwa8ZyhjgA4a?dl=0 for high resolution photos.

Contact: Brennan Kirkpatrick brennan@infinichair.ca 613-466-0222

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 :

• http://www.ebay.fr/itm/Varifocal-Manual-Iris-CCTV-Lens-4-10mm-C-Mount-2-Mega-Pixel-VF-MI-4-10-C-2MP-/121077583241?pt=UK_CCTV&hash=item1c30c94d89

• http://tinyurl.com/qx3utvp

• http://www.ebay.com/itm/DV3-4X3-8SA-1-LENS-1-2-3-8-13MM-VARIFOCAL-MANUAL-IRIS-/150585299071?

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.

Lenses used: Jupiter 3 50mm f1.5, and Jupiter 9 85mm f2.0 M39 mount adapted to M4/3 A few clips were colored with FilmConvert. Edited in Sony Vegas. Enjoy!

All team was fantastic and very helpful on the Making Of, with a special thanks to Gary Hymes who is both a great director, a great technician and a very humble person.

This is the first time in China, a project of that kind is produced at such scale. Interesting thing is that all those effort were made for a theme park, not for a theater release.

On a technical point, shots for the making if were done by 3 cameramen (including myself) working with Sony EX1, Canon 5D2, Panasonic AF100 and GH3. We collected more than 20 hours of footage and I had a hard time to choose among all the great stuff we had. Finally, I succeed to compress the best of it into a 9 minutes exciting piece (edited in Premiere CS6). Enjoy!

I just recently wanted to buy a fisheye lens to filming skateboard videos, but I came across 2 different fisheyes :

• The Rokinon 7.5mm f3.5 for Micro 4/3

Or

• The Rokinon 8mm f2.8 for Sony E-mount (NEX-7, NEX-5, NEX-3...) + Adapter

The thing is I know the Rokinon for M4/3 is going to fit directly on my camera (tried it in a shop), but the Rokinon for Sony is much faster, but maybe a little less wide...

Can you please help me choose ?

Thank you.

Full list of contenders: (will be amended according to contributions)

• Leica Panasonic DG Summilux 25mm f/1.4
• Olympus 25mm f/1.8
• SLR Magic f/0.95
• Voigtlander Nokton 25 f/0.95

(This original post revised, thanks Vitaliy)

It turns out the Honor can take a full second for a single app to load.

When I talk to anybody about phones they want to convince me to buy a brand or an OS. I don't want to know which phone or OS has the fastest graphic, but how a phone can be fast. I want to talk CPUs, multi-threading and especially GPUs.

I just finished shooting a feature film with these lenses on a GH2 with the Quantum 9b settings created by @driftwood and the images came out f-ing amazing. This is a truly beautiful set of very high quality glass. However, I'm purchasing a C300 package now, and these will not be adaptable to that camera... so they must go, sadly. I hand-picked each of these lenses, and love them all. I'm 100% certain you will, too!

The lenses are as follows:

20mm f2.8 FDn

28mm f2 FDn

35mm f2 FDn

50mm f1.4 SSC

85mm f1.8 SSC

135mm f2 FDn

35-105mm f3.5 FDn

The ND filter set includes:

Tiffen 72mm ND 0.6

Tiffen 72mm ND 0.9

Tiffen 72mm ND 1.2

Tiffen 62mm ND 1.2

B+W 62mm ND 1.8

Step-Up Rings: 52-72, 55-72, 52-62, 55-62, 46-52

I'll sell the complete package for $1500, including shipping to CONUS. Payment is made by Paypal as a gift, or purchase payment with fees added. I would prefer not to separate, but if you want just one or two items, send me a PM with an offer.

I also have a Novoflex m4/3 to Canon FD adapter that I will add for an additional $100 if you want it.

Complete package will be shipped in a foam cut-out hard case. Two filter slings are included for the ND set.

Long story:

Bought a Samsung SD 16gb Plus Class 10 (this kind: http://www.amazon.co.uk/Samsung-16GB-Class-Extreme-Speed/dp/B00569J5JC/ref=sr_1_5?ie=UTF8&qid=1327802435&sr=8-5)

First thing I did was format it at 32K and 64K clusters for optimal speed and benchmark it. Speed gains from 64K were marginal, and IIRC the camera didn't like them and defaulted to 32K if I formatted in camera.

Benchmarked the card at almost ~15MB with 16MB files and ~13MB with 8MB files. "Nice!" - I thought, 15MBs is better than Class 10 and since it's 120Mbps it will hold some pretty aggressive patches for a card that costs 20€.

But one day as I was moving FW from my laptop to the card I noticed the transfer speed was way below 10MBs! :( This started a heavy series of benchmarks that were all flawed (basically the problem was that the internal SD reader on the laptop is speed limited) but that had an unexpected development in my struggle to get the benchmark back to the speed I knew it was capable of. In that series of events I used some SSD reasoning "It's flash memory, I should try a Full Format not a Quick Format."

When I returned home and benchmarked the card on the external reader where I originally got almost 15MBs, this is what I got:

I don't know if this will transport to other brands, but I know I'll be doing this every now and then....