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01-06-2012, 05:56 PM   #16
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By the way, Horusbennu is Korean not Chinese. The company is based in Seoul.

01-07-2012, 02:17 AM   #17
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QuoteOriginally posted by bdparker Quote
By the way, Horusbennu is Korean not Chinese. The company is based in Seoul.
it's OEM I think.
01-07-2012, 01:10 PM   #18
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The Horusbennu lens is known to be the same as the Phenix 50 1.7, and I wonder why koreans would buy a chinese lens' design to craft it in Korea. Also, the company Horusbennu looks to have only two lenses in the catalogue, and no factory, so they have to buy them somewhere...

By the way, I've just bought a film SLR and I've shot a roll in the streets, so soon we'll know if the HB50 1.7 is a good full-frame lens. We can guess it's fairly decent, since the Phenix cameras are full-frame film SLRs.
01-10-2012, 03:07 PM   #19
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As promised, here are some shots taken with HB50 1.7. Scroll is Ilford FP4 plus 125 and SLR is glorious K1000. Please be kind, it's the first time I shoot film this century.

http://pics.livejournal.com/aspexplorer/pic/004da9dt
http://pics.livejournal.com/aspexplorer/pic/004ddaxa
http://pics.livejournal.com/aspexplorer/pic/004db6px
http://pics.livejournal.com/aspexplorer/pic/004dcwk4
http://pics.livejournal.com/aspexplorer/pic/004dky7e
http://pics.livejournal.com/aspexplorer/pic/004dgt14

You may notice that the HB50 has no visible distorsion, falloff is moderate at full aperture (the bike) and inexistant when stopped down. Remember : this is full frame.


Last edited by Asp Explorer; 01-10-2012 at 03:13 PM.
01-17-2012, 02:49 PM   #20
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Smee again.

Did some more test shots. All at 100ISO, manual, with K-5, no editing except color balance.

f/1.7 1/6s
f/2.2 1/4s
f/2.8 1/2s
f/3.4 0.7s
f/4.0 1s
f/5.6 2s
f/8.0 4s
f/11.0 8s
f/16.0 15s
f/22.0 30s

As I stated before, the HB 50mm 1.7 is no more than a toy lens at 1.7 and 2.2, with extensive patches of goo smashed around any bright surface. However, at these apertures, the low contrast details are rendered with some accuracy. Falloff is decent. At 2.8, the blurry patches shrink dramatically and at 4, they disappear, letting the HB50 express a fairly good sharpness. At 8, this cheap lens makes no less than "good brands" ones, as far as I can see. After 11, we enter the realms of interferences.

Conclusion : don't use the HB wider than 2.8 and if you do so, don't shoot highly contrasted scenes.

Also : I know the Sigma 30 1.4 is a crop sensor lens and the K1000 a full-frame.

Last edited by Asp Explorer; 01-17-2012 at 02:53 PM. Reason: Precisions
01-17-2012, 03:25 PM   #21
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A pretty decent lens stopped down, but for $40-50 I'd rather pick up a used Pentax M50/1.7. Sharp at all apertures.
01-21-2012, 07:46 AM   #22
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QuoteOriginally posted by Asp Explorer Quote
Smee again.

Conclusion : don't use the HB wider than 2.8 and if you do so, don't shoot highly contrasted scenes.
I partly disagree. If you shoot with your subject distance towards the minimum then your total DoF is only 6-7mm (depending which calculation you use). Therefore if you shoot a 3D subject like you camera, then anything bright-out-of-focus is going to blow the highlight @100% croped.....

I purchased the cheap HB50 to deliberately experiment with it, by turning it into an A50 f1.7, using Robert Stech's K Mount Mod. To a major extent it is working, the only trouble I'm having is setting up a spring loaded bearing for the M/A aperture pin. It is however recognising f1.7-f22 automatically when I manage to get a piece of foil to touch the "A" pin and get full access to all settings.

The draw back is that I now get overexposure from f4 onwards and need to compersate... f4 = EV-1 f8->f22= EV-2->3 (depending on the subject)

So here is an image from my modified HB50 f1.7 Limited* @ ISO100 1/13sec taken at 55mm from subject. As Shoot, only resized the image nothing else.



And if you really need to see it cropped 100% here it is.... Remember DoF is 6-7mm, thats only about half the width of the bayonet step. focal point is right on the edge.

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06-06-2012, 09:51 AM   #23
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Okey I had this lens before. I came from the country and city which produces this lens. PHENIX is originally a Shanghai optical company, and during 1960s and 1970s it moved to the inner land.
This threat is kind old but I just hope who asked this could have some general idea about "Chinese lenses". I used to keep Pentax M50/1.7, Ricoh 50/1.7 and PHENIX 50/1.7.
As you all know that there are not a lot of BIG NAMES in China like NIKKON and Canon. However this does not mean that China cannot make lenses and cameras. And 50mm f1.7 is not a something very difficult, so.
I think the price for this lens, when I got that it was 280 RMB (around 40 bucks).

For the in-depth review, here is a link:
http://www.cnpentax.com/thread-209-1-1.html

Personally I like this lens (okey, "emotionally"....). It is metal, nice quality.full-open useable (still soft), though some CA exists; and according to that post, it even performances better than the M50 @F2.8.

It compared the PENTAX/RICOH/PHENIX. I know it is in Chinese but plz try google translation.
Besides, FYI SEAGULL is another Chinese optic company. on Amazon it sells zoom viewfinder. Yongnuo, another brand is making not-bad flash.

Hope these can help you.

Best,
Bing

08-02-2017, 02:31 PM - 1 Like   #26
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I know this is an old thread, but there isn't a ton on info about this lens, so just wanted to ad my two-cents. I got mine for around $20; the listing had some demo shots that where pretty intriguing, so I took the "risk" and bid $25- it came in under. Actually, I really enjoy this little lens as a creative tool. There are plenty of lenses available that produce perfect bokeh (that entirely subjective standard) and are "sharp as a razor". This isn't really either, but it unlike any other lens I've shot. I LOVE the Phenix's out of focus rendering- it's weirdly chunky and busy, not some beautiful creamy surface or legendary bubbles, but is very much it's own, and if you love experimenting with your photography, this is a pretty unique piece to have to grab and play with.It really shines if you are one to push bokeh, get in there and make things get blurry fun- and actually, the focus point is plenty sharp wide open at 1.7. If you can get one cheap (which, I don't know where you'd find an expensive one), try it out. It is really fun- especially for the price (remember when you heard about that one cheap Russian lens that was just fun- back when it was cheap?).
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