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Forum: Pentax SLR Lens Discussion 09-19-2017, 06:04 AM  
Pentax NOCTA infrared
Posted By hoanpham
Replies: 8
Views: 582
Forum: Pentax DSLR Discussion 08-09-2017, 09:26 AM  
Pentax Auto 110 super
Posted By hoanpham
Replies: 7
Views: 500
wide open.
My Nex adapter does not have iris, but there are other mounts that have.

18mm should be the best, then 70mm, 50mm and 24mm.
Even 24mm is very usable.
Forum: Pentax DSLR Discussion 08-08-2017, 11:37 PM  
Pentax Auto 110 super
Posted By hoanpham
Replies: 7
Views: 500
I use the lenses with sony nex bodies. The lenses are amazingly good.
Forum: Pentax SLR Lens Discussion 08-07-2017, 09:49 AM  
Pentax K 18mm f3.5
Posted By hoanpham
Replies: 5
Views: 509
Thanks Adam. I read many reviews about it, but decided to give it a try anyway.
I am using it with A7r. As you see, edges and corners are really good.
Forum: Pentax SLR Lens Discussion 08-07-2017, 09:43 AM  
Pentax K 18mm f3.5
Posted By hoanpham
Replies: 5
Views: 509
I don't have a K1, but this lens is just awesome...

20170807-DSC02906 by H X, on Flickr

20170807-DSC02900 by H X, on Flickr

20170807-DSC02889 by H X, on Flickr

20170803-DSC02873 by H X, on Flickr

20170803-DSC02867 by H X, on Flickr
Forum: Pentax SLR Lens Discussion 05-24-2017, 12:28 AM  
Does Mamiya/Sekor 50mm f1.2 really exist?
Posted By hoanpham
Replies: 26
Views: 9,831
55mm f1.2 yes, but hardly seen a 50mm f1.2 in m42.
Forum: Pentax News and Rumors 03-17-2017, 05:54 AM  
D-FA* 85mm f1.4 also coming
Posted By hoanpham
Replies: 1,343
Views: 99,543
and 28mm/24mm F1.4.

The only 28mm f1.4 is Leica and old Nikon. Why stop here?
Forum: Pentax SLR Lens Discussion 06-07-2016, 01:19 AM  
Question for the A*135mm 1.8 owners
Posted By hoanpham
Replies: 7
Views: 759
I bought a Zeiss instead.
Forum: Pentax SLR Lens Discussion 03-16-2016, 01:01 AM  
AF speed with DA* lenses for sports - please share your experience.
Posted By hoanpham
Replies: 43
Views: 2,593
I can confirm this too. DA*200 is too slow. I have not tried other pentax lenses. Sigma 120-400 also not very fast.
Forum: Pentax SLR Lens Discussion 03-07-2016, 01:31 PM  
How many lenses do you have?
Posted By hoanpham
Replies: 1,503
Views: 105,484
Awesome!
I might consider to move to Detroit if you are willing to lend me one or two :-)
Forum: Pentax SLR Lens Discussion 03-05-2016, 10:01 AM  
Pentax soft focus lenses. Please post your own personal experience
Posted By hoanpham
Replies: 46
Views: 6,383
I found some other samples too, but on nikon D800:
Tamron SP 70-150mm f2.8 soft focus D800
Forum: Pentax SLR Lens Discussion 03-05-2016, 03:49 AM  
Pentax soft focus lenses. Please post your own personal experience
Posted By hoanpham
Replies: 46
Views: 6,383
I cant see any comment on Tamron SP 70-150/2.8 soft focus.

I have this lens. It is razor sharp when used with no soft focus, one of the best zooms. Use with Pentax A adapter, or any mount you want.
Soft focus is challenging. The lens has different soft characters for
- distance
- zoom setting
- aperture setting
- soft focus setting

Finding the right balance among these 4 dimensions was not easy, but I had, and still have, a lot of fun when I use the lens.
Here are some old samples:
Tamron 70-150 f2.8 soft focus
Forum: Pentax DSLR Discussion 02-06-2016, 01:51 AM  
Shall I Stay or Shall I Go?
Posted By hoanpham
Replies: 103
Views: 6,048
It's not about the gear or the brand. It's about how the photographer captures the moments.
K5 is a great body. Just need to take more pictures.
Forum: Pentax SLR Lens Discussion 02-02-2016, 04:29 AM  
An interestng story about the lens give-away!
Posted By hoanpham
Replies: 15
Views: 1,267
Well done. Best story in 2016 so far :-)
Forum: Pentax SLR Lens Discussion 01-16-2016, 03:13 PM  
I'm sorry to say.... lenses are all gone.
Posted By hoanpham
Replies: 13
Views: 1,041
Hat off for you.
Forum: Pentax SLR Lens Discussion 12-18-2015, 03:06 PM  
Poll: LBA - You favorite 30ish lens?
Posted By hoanpham
Replies: 67
Views: 4,114
I like this lens too.
Forum: Pentax SLR Lens Discussion 12-16-2015, 08:11 AM  
Finally got a Pentax-A 50mm f1.2!
Posted By hoanpham
Replies: 25
Views: 2,369
Congrats :-)
Forum: Pentax SLR Lens Discussion 12-11-2015, 01:17 PM  
The Bokeh Club
Posted By hoanpham
Replies: 10,430
Views: 1,027,228
another by K 50mm f1.2:
20151127-DSC06690 by H X, on Flickr
Forum: Pentax SLR Lens Discussion 12-10-2015, 12:14 AM  
F1.2 Lenses
Posted By hoanpham
Replies: 56
Views: 4,143
I have 6-7 different fast 50mm f1.2 - f1.1. All of them glow at wide open, and still slightly glow at f1.4. All depends on the light condition.
If you want perfect f1.4, get a Summilux 50/1.4 Asph (and a body to use it).

A50/1.2 is best the Pentax 50mm at f1.2, then K version. With correct light condition, there is no different between them.

f1.2 is challenging. I am sure you will have a lot of fun with it. It took me years to use it correctly :-)
Forum: Pentax SLR Lens Discussion 12-09-2015, 01:33 PM  
F1.2 Lenses
Posted By hoanpham
Replies: 56
Views: 4,143
Moved to public. Mostly at f1.2. Enjoy :-)
Forum: Pentax SLR Lens Discussion 12-09-2015, 12:15 PM  
They said I was mad! (new silvering project) + samples ....
Posted By hoanpham
Replies: 64
Views: 4,962
Awesome!
Forum: Pentax SLR Lens Discussion 12-09-2015, 11:59 AM  
F1.2 Lenses
Posted By hoanpham
Replies: 56
Views: 4,143
Pentax K 50mm f1.2 goes concert. All at f1.2, on a7r. My A50/1.2 is lightly sharper.
(click to enlarge)

20151127-DSC06332 by H X, on Flickr

20151127-DSC06356 by H X, on Flickr

20151127-DSC06654 by H X, on Flickr

20151127-DSC06392 by H X, on Flickr

20151127-DSC06393 by H X, on Flickr

20151127-DSC06404 by H X, on Flickr
Forum: Pentax SLR Lens Discussion 12-09-2015, 10:00 AM  
F1.2 Lenses
Posted By hoanpham
Replies: 56
Views: 4,143
I think mine might be a defect copy as well. It is super sharp at f1.2 :-)
Forum: Pentax SLR Lens Discussion 12-09-2015, 09:56 AM  
The Bokeh Club
Posted By hoanpham
Replies: 10,430
Views: 1,027,228
Pentax K 50mm f1.2 (on A7r):

20151127-DSC06684 by H X, on Flickr

20151127-DSC06688 by H X, on Flickr
Forum: Pentax SLR Lens Discussion 05-27-2015, 03:47 AM  
Is a relatively inexpensive 400mm prime better than 55-300mm?
Posted By hoanpham
Replies: 13
Views: 1,506
No birdshot from me, too difficult :)
Really nice birds you got.

Here is the album of Tokina 400/5.6:
https://plus.google.com/photos/110033839625980502651/albums/5997052363268861121

And here is samles from DA 55-300:
https://plus.google.com/photos/110033839625980502651/albums/6153499594977971585

And here is samples from Nikkor ED-IF 400/5.6:
https://plus.google.com/photos/110033839625980502651/albums/6153502494750096529
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