Tag Archives: Rokinon 7.5mm Fisheye

GH4 4K vs 1080p Crop View with Fisheye Lens De-Fish to 1080p Test • 13 Comments

Emm • May 14, 2014

MFT cameras don't share the same wide field of view as a full frame DSLR. In addition the 4K Video setting on the Panasonic DMC-GH4 is further cropped in when compared to it's own 1080p setting.

Rokinon Fisheye 1080p

One benefit to shooting 4K video is the extra resolution that will allow you to recompose, level a shot, or even zoom in to frame when outputting to 1080p. Seeing how my Rokinon 7.5mm Fisheye lens became less 'fisheye-like' with the 4K crop, I was also curious about using the extra resolution to correct the remaining distortion and finally outputting to 1080p. Nothing new as many users have 'de-fished' the Ultra Wide look from early GoPro cameras. I attempted to DeFish a BlackMagic Pocket Cinema Camera Clip with my fisheye lens that ended up looking great, but 1080p can only be stretched so far.

Here's a video showing different crop factors between 1080p using the Panasonic 12-35mm F/2.8 (@12mm) and the Rokinon 7.5mm MFT Fisheye Lens.

My tests with the GH4 4K Video show that the image is far from perfect, but far better when attempting to defish from a 1080p file. There's an obvious loss of sharpness towards the edges if you're really nit picky, but in many cases where you have to work in very tight situations with a GH4, taking advantage of the extra resolution in 4K is a good option. (BTW no sharpening has been done in post in this video)

Rokinon Fisheye MFT Micro four thirds fish eye lens cheesycam GH4 defish lens
Rokinon 7.5mm Fisheye Lens for MFT Cameras

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Panasonic 12-35mm F/2.8 Lens

Panasonic GH4 order stock inventory
Panasonic Lumix DMC-GH4 MFT 4K Camera

Before and After BlackMagic Pocket Cinema Camera – Monterey Bay • 18 Comments

Emm • September 16, 2013

Over the weekend I spent a day shooting with a new BlackMagic Pocket Cinema Camera out at Monterey, CA. This time around I was prepared with 6 batteries and over 200GB of space with compatible SDHC cards. Needless to say, my time spent with the camera was much more pleasant than my very first experience. The video below is an example of the footage straight from the camera along with an image that had basic contrast + saturation added.

The shots were mostly handheld, with an LCD ViewFinder (not yet released product) attached to help me with focusing and while working in bright daylight. An LCD ViewFinder is a must have with this camera! Below is the same video without the ProRes crop.

I had a pretty decent idea of the lenses I wanted to take out with me, so I settled on just the Panasonic 20mm F/1.7 pancake, Panasonic 12-35mm F/ 2.8 OIS, and Rokinon 7.5mm Fisheye. BMPC users on a budget should really look into the Rokinon 7.5mm Fisheye and the 12-35mm F/2.8 as part of their everyday kit. The fisheye doesn't look overly distorted and offers a decent wide view angle for cheap money, while the Panasonic 12-35mm F/2.8 OIS is a great overall lens that will offer fairly stable shots completely hand held.

Suggested Micro Four Third Lenses for Pocket Cinema Camera