Samyang Rokinon 8mm fisheye lens with shaved hood : 無料・フリー素材/写真
Samyang Rokinon 8mm fisheye lens with shaved hood / Darron Birgenheier
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | I got brave, and started hacking on my nearly new Rokinon fisheye well after midnight. With the able assistance of my surgeon girlfriend's steady hands, I managed to remove the huge, fragile front element with a pair of scissors.I mounted a rear lens cap, and covered the lens barrel with packing tape. I cut two circles of card stock to fit tightly inside the hood. They served to keep the dust and bits out.To cut the hood down, I used a small abrasive cutoff wheel, meant for a Dremel-type rotary tool. The wheel was chucked in my tiny Harbor Freight bench top drill press, and the lens handheld on the drill press table, with the end cap resting on the table, and the table height adjusted to place the cutting wheel right inline with the intended cut line around the hood (shoulda taken a photo or video of this setup, I know).Multiple careful passes around the plastic hood neatly separated it. Some sanding and deburring with a utility knife soon had it looking almost like it was made this way. You can see the duller finish on the front of the remaining portion of the hood.The remaining challenge is to make a good lens cap. The original mounted to the hood, so will no longer fit. The bulging front element and vestigial hood leave minimal mounting options. I'm considering designing a cap in CAD, then having it 3D printed out of ABS. It will be a challenge to get a proper snap fit on the remaining portion of the lens hood. I might even integrate a knob on the front of the cap, to ease installation and removal. |
| 撮影日 | 2013-05-31 03:55:36 |
| 撮影者 | Darron Birgenheier , Reno, NV, USA |
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| 撮影地 | |
| カメラ | HP DSC PB360t , Hewlett-Packard |
| 露出 | 0.017 sec (1/60) |
| 開放F値 | f/3.1 |