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Forum: Sold Items 11-20-2011, 09:50 PM  
Wanted - Acquired: NON " * " Takumar 6X7 400mm f4
Posted By vcheng9
Replies: 8
Views: 965
PM sent. I have one in good condition for sale.
Forum: Pentax Price Watch 07-06-2011, 04:42 PM  
Pentax GPS Module O-GPS1 $205 shipped
Posted By vcheng9
Replies: 0
Views: 2,682
Not a bad price for a brand new product from a reliable vendor


PROVANTAGE: PENTAX 39012 Pentax O-GPS1 GPS Module for Pentax DSLR Cameras
Forum: Pentax Q 06-22-2011, 11:17 PM  
Pentax Q in the Flesh
Posted By vcheng9
Replies: 1,310
Views: 223,827
Imaging Resource has the hi iso samples. Looks to me ISO 800-1600 is not bad
Pentax Q Compact System Camera Samples - Hands-On Preview

$800 is incl the 47mm F/1.9. I think the body only is $600 MSRP and there will be 20-30% discount online real quick...
Forum: Sold Items 04-25-2011, 09:57 PM  
For Sale - Sold: Pentax Piesker 400mm f4.5 MF (US/CAN)
Posted By vcheng9
Replies: 15
Views: 6,154
I just an message to Peter of backing out of this deal, so this lens will be available again.
Good luck for the new owner :)
Forum: Sold Items 04-25-2011, 08:53 AM  
For Sale - Sold: Pentax Piesker 400mm f4.5 MF (US/CAN)
Posted By vcheng9
Replies: 15
Views: 6,154
pm sent with full offer :)
Forum: Sold Items 03-30-2011, 12:28 AM  
Wanted - Acquired: smc A 35-105mm/3.5
Posted By vcheng9
Replies: 7
Views: 2,416
Photo link just sent to you
Forum: Sold Items 03-29-2011, 03:55 PM  
Wanted - Acquired: smc A 35-105mm/3.5
Posted By vcheng9
Replies: 7
Views: 2,416
I am willing to sell mine for $150 USD + shipping. Let me post you some photos tonight or tomorrow.

Vincent
Forum: Sold Items 03-29-2011, 03:32 PM  
For Sale - Sold: Sigma 24mm f1.8 AF with case etc. (Worldwide)
Posted By vcheng9
Replies: 2
Views: 2,115
pm sent. Thank you.
Forum: Pentax K-5 & K-5 II 12-25-2010, 10:48 AM  
who cares for bad AF under tungsten light ?
Posted By vcheng9
Replies: 440
Views: 74,731
I have similar problem with my k-5 and my Sigma 30mm 1.4, Pentax 43mm 1.9, 35mm 2.0 and 77mm 1.8. LV AF is accurate but I can't use it for certain situations (e.g running kids)
most of my Christmas dinner photos were just wasted.. and I don't have this problem with my K20D..

Should I ask for an exchange, or refund (and take the 15% RMA penalty from vendor) or wait for a firmware bug fix ?

Regards,

Vincent
Forum: Pentax News and Rumors 11-15-2010, 01:25 PM  
Asian movie superstar Chow Yun-Fat chooses Pentax 645D
Posted By vcheng9
Replies: 35
Views: 27,186
Fat used to use many large/medium format film incl. Pentax 6x7II for b&w. I think this is his first digital. He says a lot of good things about the 645D during the interview and kinda do Pentax a free promotion.

You can find some of his photos here
ÖÜÈó·¢.ÉãÓ°_milk_POCOÍø(POCO.CN)_ÎÒµÄÕÕƬÎҵĿռä
BOOK ????????Moving Pictures?

Btw Fat's sister is also a professional photographer and dedicated in natural, esp. in dragonfly.
Forum: Pentax K-5 & K-5 II 10-20-2010, 08:22 PM  
Better Price for the K-5
Posted By vcheng9
Replies: 31
Views: 9,405
here is the resellersrating..Pretty good
PROVANTAGE Corporation - provantage.com - Reviews, Ratings and Prices at ResellerRatings

This has almost reached the $1400 price that many people have been looking for
Forum: Pentax News and Rumors 09-19-2010, 11:32 AM  
Official Pentax K-5 Specs !
Posted By vcheng9
Replies: 365
Views: 112,862
If you think K-5 is bad, look at the Olympus E-5..it took Olympus 4 yrs for such a minor upgrade.

Big players like C/N/S have a much deeper pocket to invest in R&D and try out new tech (like Sony A55)...

Let's hope K-r and K-5 will be a success like K-x
Forum: Pentax News and Rumors 09-19-2010, 11:01 AM  
Official Pentax K-5 Specs !
Posted By vcheng9
Replies: 365
Views: 112,862
I just want to video my toddler (14 months old girl) and it is much easier to have one device (DSLR) that can do both good photo and video with AF.

In the year of 2010, Pentax is the only main player can't do AF in video. C/N/S/Panasonic/Olympus are all offering this function now in part of their products.
Forum: Pentax News and Rumors 09-19-2010, 09:50 AM  
Official Pentax K-5 Specs !
Posted By vcheng9
Replies: 365
Views: 112,862
I am sorry if I sound like pessimistic, but the "surprises" we see here are only 14 bit RAW and 51200 ISO. 14bit RAW is irrelevant to most users, and there is performance penalty compare with 12 bit. 51200 ISO is just 25600 + 1EV in software.

In the German brochure, my disappointment are no mention of:
-AF in video
-Manual control in video
-F2.8 center sensor as employed by C/N/S many years ago
-Future 1/250s sync speed upgrade

Hopefully Pentax has also looked into the never-admitted shutter induced blur by K-7 and K-x as well

Vincent
Forum: Photographic Technique 09-17-2010, 06:58 PM  
evil k-mount
Posted By vcheng9
Replies: 6
Views: 3,018
That glass element would very likely reduce the image quality..just like all the FD adapters.

I really hope there EVIL will be K mount and able to re-use all the current Pentax small K-mount lens.
Forum: Sold Items 09-16-2010, 09:10 PM  
For Sale - Sold: Pentax 21mm/40mm/50mm/70mm/2x Macro/3x-1.5xMacro (Worldwide)
Posted By vcheng9
Replies: 39
Views: 13,083
Hinman, are you leaving Pentax?

I surely hope not...
Forum: Sold Items 09-14-2010, 04:01 PM  
For Sale - Sold: S-M-C TAKUMAR 135mm/2.5 Version 2 $180 inclusive (CONUS)
Posted By vcheng9
Replies: 4
Views: 3,550
pm sent with full offer.
Forum: Pentax DSLR Discussion 09-09-2010, 12:04 AM  
Different between Safox VIII+ and Safox IX?
Posted By vcheng9
Replies: 53
Views: 20,306
Thanks for all the responses. Imaging Resource has this info for SAFOX IX:
"The SAFOX IX AF module's optics have improved transparency, which should translate to improved performance in low light. The AF module's optics also have better controlled aberration, improving autofocus accuracy. Ambient temperature should also have less of an impact on the SAFOX IX module. Sharp-eyed readers will note that the K-r's SAFOX module lacks the "+" designation of the modules featured in the 645D and K-7, and this hints at one omission in the Pentax K-r's AF system. Where the K-7 and 645D both include a secondary light color sensor dedicated to determining the light source type, which is then taken into account when determining focus, the Pentax K-r lacks this function."

Sounds good to me :)
Forum: Pentax DSLR Discussion 09-08-2010, 10:08 PM  
Different between Safox VIII+ and Safox IX?
Posted By vcheng9
Replies: 53
Views: 20,306
Does anyone know the different between Safox VIII+ on K-7 and the Safox IX on 645D and upcoming K-R? I think the Safox IX is slightly wider..but any different in terms of speed and accuracy (esp. in low lit or larger aperture like F1.4) ?

Vincent
Forum: Pentax News and Rumors 09-05-2010, 10:59 AM  
Brief info about K-5 and KR
Posted By vcheng9
Replies: 569
Views: 141,119
More info about the bodies and new lenses from this website ( Published: SEPTEMBER 4, 2010)
Photo Rumors

According to it, the K-5 AF system will be "slightly better (incorporating some tweaks developed for 645D)".
Does anyone know the different between SAFOX IX+ (in 645D) and SAFOX VIII+ (in K7) ?
Forum: Sold Items 09-04-2010, 09:40 AM  
For Sale - Sold: Sigma 10-20mm, Voightlander 180mm, DA 55-300mm, F 50mm (Worldwide)
Posted By vcheng9
Replies: 11
Views: 3,969
pm sent for Sigma 10-20mm :)
Forum: Sold Items 08-19-2010, 05:57 PM  
Wanted - Acquired: Tamron 90mm 2.5 lmacro ens 52B or 52BB
Posted By vcheng9
Replies: 1
Views: 3,937
I have one for sale. Do you need the adaptall K/A mount as well ?
Forum: Sold Items 08-11-2010, 03:42 PM  
Wanted - Acquired: K20D, body only or body+lens (EUR)
Posted By vcheng9
Replies: 1
Views: 2,394
I have one for sale with box and manual. Let me say you a PM when i get back to home tonight (about 8pm pacific time)
Forum: Sold Items 07-26-2010, 12:10 PM  
Wanted - Acquired: [langtitle=de]Tamron sp 3.5 70-210mm 19AH or Vivitar series 1 70-210mm ve[
Posted By vcheng9
Replies: 1
Views: 3,834
PM sent for Vivtar 70-210mm version 3 with A mode.
Forum: Sold Items 07-22-2010, 08:01 PM  
For Sale - Sold: Pentax-A 35-105mm f3.5 (CONUS)
Posted By vcheng9
Replies: 3
Views: 2,225
pm sent with offer!
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