|
Forum: Pentax Q
03-03-2019, 01:05 AM
|
| |
The store I bought it from mislabeled the Fujinon 1.4mm F1.8 as a CS, Fujinon 1.4mm f/1.8 Fisheye lens CS Mount DF1.4HB-L1 - Ideal for All Sky Camera but to my delight it’s actually a C mount lens! Simply mounted it with the same inexpensive one piece C to PQ adaptor as I already used for my Funjinon 2.7mm F1.8. I can even employ the same rubber O-ring as a variable thickness shim for re-focusing from zero to infinity! Outwardly the dimensions match the 2.7mm F1.8. Without the labels, you could not tell them apart. The sturdy plastic lens cap came as a bonus that fits my 2.7mm F1.8 lens too! I wish I had spare. The accompanying simple rear cap is nothing to write home about but appreciated still.
Confirmed my suspicions that it’s a full circular fisheye image on a Q-S1 (what I wanted), and a gives a cropped-circle image when pairing with my original Q. How much crop off the top and or bottom varies depending on the stabilization compensation and your C to PQ adaptor’s alignment.
Resolution I consider is still on par with the 5 MP 2.7mm F1.8. It also exhibits similar purple fringes in very high contrast situations but I am able to rein them in with a few sweeps of a finger via Snapseed, the sample below was cleaned up this way.
Field of view is certainly more than the 180,
I am not sure how to measure how wide exactly but I guess 190 or more.
If you want a fast fisheye that fills the frame on either the smaller or larger sensor Q’s without a black circle, the 2.7mm F1.8 is great.
If you are after the extreme look of a full circle super fisheye for the Q7 or Q-S1, this is a neat and perhaps at this moment, even unique proposition. £65 inclusive of postage within the UK, is not outrageous IMO.
Funjinon 2.7mm F1.8
Funjinon 1.4mm F1.8
What do you think?
|
|
Forum: Pentax Q
02-28-2019, 06:01 PM
|
| |
Took a leap of faith and bought this CS lens and should be in my hands soon.
Will need some time and thought to DIY rig this very front-heavy looking CS lens to Q mount. May be a challenge.
Predict it will be near, if not fully circle fisheye on a Q-S1.
Report back my findings when ready.
|
|
Forum: Pentax Q
02-14-2019, 04:03 AM
|
| |
| |
|
Forum: Pentax Q
01-22-2019, 05:56 PM
|
| |
Some protection for my Fujinon fisheye. Added a strip of black card to deepen a black plastic push-on cap standard 55mm. Will be more more robust once I find some scrap black plastic material to replace the cardboard 😅
 |
|
Forum: Pentax Q
01-19-2019, 12:41 AM
|
| |
I needed a shim between the Fujinon fisheye and my one piece C mount to Pentax Q adaptor.
Re-using the black rubber o-ring seal from the silver metal adaptor out of the Axis security camera was very handy. It is offering just the right flex to allow for smooth focus adjust with enough resistance that stays put when I want it to. Acts like a makeshift helicoid I suppose. Give it a try if you did not throw out your o-ring already. Otherwise a similar size o-ring would do the trick.
 |
|
Forum: Pentax Q
12-10-2018, 04:51 AM
|
| |
Will PM you are a godsend!
|
|
Forum: Pentax Q
12-09-2018, 11:37 PM
|
| |
I wish I could find this lens on UK eBay without the massive shipping costs...
|
|
Forum: Pentax Q
06-05-2018, 06:22 PM
|
| |
Please post a color photo of the Q and lens with OJ lenscap! 👍🏻😂
|
