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Forum: Pentax News and Rumors 02-16-2015, 03:22 AM  
FF: Will there be an aperture / stop down coupler?
Posted By sunnycamera
Replies: 112
Views: 14,317
Ok, after reading 5 pages of opinions,

Here are what I get,

1. People want aperture level coupler, because they want "fast action shootig with their K M series lens", without need use of green button.


My thought is that How fast can you go with a manual focus lens, and How fast you can get accurate focus with manual focus lens, a button click not making any addition to already slow pace of manual focus lens.

Since dslr viewfinder are not good for fast accurate focusing, even u are fast at manual focus, today 24MP sensor will show up any little misfocus.

Forget fast action with manual lens. That is why they made dfa 70-200.

2. Ok, if you are at god speed and eye accuracy with K M lens, are they really the best among K M A F FA DFA lines.

Just for sake of K series and M series, the best K M lens are already replaced by A lens in film age, which no need green button already.

So get those A * lens instead of the cheaper K M version, they are best pentax manual focus lens.

K50 f1.2 replaced by A 50 f1.2, M* 300 f4 replaced by A300 f4 and A*300 f2.8 and so on.

So, for those asking for aperture coupler,

Naming a K series or M series lens that worth the effort.


3. Of course, someone would say, "all my k m lens are best pentax lens, like M 200mm f4, i like the render, and i care that that 1 sec green button click after focusing for 1min, because i am perfectionist."


Ok, same as I do, I use k m series all the way to the best with matte focus screen, and tired of inaccurate green button meter,

So my solution is shoot all manual mode, forget those metering process, if you already a hardcore pentax user,

You should learn shooting with manual aperture, manual shutter, iso fixed like those no-battery k1000 or mx slrs.

People old days shoot all day long without meter, and still get perfect photo with manual focus sunny 16 rules.

So shoot all manual and remember ev number of commom lighting condition. You dont have to green button if you confident your setting is all right.

4. ok, so relax, K M series are good memory of past, even the slightly more modern film lens, like F lens, FA lens, may not good enough on the coming Full Frame pentax DSLR, because of purple fringes, maybe except FA* lineups

Manual lens are good for sunny afternoon walk, but they are too old to try to do things today's young people doing,

let them enjoy retirement, let the young carry it on. use the green button, it is just like wheel chairs that help the elderly move around, or don't use it and just walk if you can manage move around without.
Forum: Pentax News and Rumors 02-01-2015, 11:54 PM  
FF GR is very much possible.
Posted By sunnycamera
Replies: 90
Views: 15,688
I doubt it is neccessory to go for full frame GR.

since full frame did not give much advantage for a compact wide angle camera.

I think GR with K-3 24MP sensor and a 21mm "equivalent" lens is more likely to happen than full frame GR with 28mm lens.

so they can still get like 16MP in 28mm mode with 21mm "equivalent" lens
Forum: General Photography 12-11-2014, 12:48 AM  
Camera Store TV Give Pentax 2 Awards 2014
Posted By sunnycamera
Replies: 82
Views: 8,134
I tried the ks1 on hand, the grip is hard to grip, even from a k01 user.

The mode dial is too big change, may only appeal to compact camera users.

Other than handling, it is fine camera, and how bad is original a7 grip
Forum: Non-Pentax Cameras: Canon, Nikon, etc. 11-04-2013, 11:09 PM  
Nikon DF: Size Comparison
Posted By sunnycamera
Replies: 40
Views: 4,449
at least this full frame is lighter K-3 (800g) :lol:
Forum: Pentax Film SLR Discussion 10-07-2013, 09:55 AM  
Gear P0rn - post it if you got it.
Posted By sunnycamera
Replies: 7,143
Views: 907,588
Forum: Pentax Film SLR Discussion 10-07-2013, 09:53 AM  
Gear P0rn - post it if you got it.
Posted By sunnycamera
Replies: 7,143
Views: 907,588
Forum: Pentax Film SLR Discussion 10-07-2013, 09:51 AM  
Gear P0rn - post it if you got it.
Posted By sunnycamera
Replies: 7,143
Views: 907,588
Forum: Pentax Film SLR Discussion 10-07-2013, 09:46 AM  
Gear P0rn - post it if you got it.
Posted By sunnycamera
Replies: 7,143
Views: 907,588
Forum: Pentax Film SLR Discussion 10-07-2013, 09:43 AM  
Gear P0rn - post it if you got it.
Posted By sunnycamera
Replies: 7,143
Views: 907,588
Forum: Pentax Film SLR Discussion 10-07-2013, 09:39 AM  
Gear P0rn - post it if you got it.
Posted By sunnycamera
Replies: 7,143
Views: 907,588
Forum: Pentax News and Rumors 09-05-2013, 06:14 AM  
Pentax / Ricoh Theta 360 camera
Posted By sunnycamera
Replies: 242
Views: 37,507
after sporty camera like GoPro go wild,

I think it is new concept, 360 degree capture, is about Space,

while Lytro is about Depth.
Forum: Pentax News and Rumors 04-25-2013, 08:00 PM  
sigma 135 1.8 rumor
Posted By sunnycamera
Replies: 178
Views: 18,329
sigma 135mm f1.8 manual focus version





Forum: Pentax News and Rumors 12-01-2012, 09:57 AM  
PSSST! Ya wanna buy a watch?
Posted By sunnycamera
Replies: 31
Views: 6,655
in Japanese language,

the Q english sound is the same is number 9 sounds in Japanese, both sounds as "kyuu".
Forum: Pentax DSLR Discussion 10-19-2012, 07:44 PM  
Trying to decide KX, KR, K7?
Posted By sunnycamera
Replies: 13
Views: 1,533
Kx has served me 2 years, it is quite good at recording the image,

as cameras are updated every year, the lens always stays.

so, I recommend Kx, and use the rest cash to get some good cheap manual primes like 28mm and 50mm.

here is my manual lens with my kx, I have changed the focus screen, without focusing screen, get 200mm manually in focus is quite difficult in viewfinder,

also because kx has lower resolution LCD, it is tricky to check in focus with live view in bright sunlight as well.

K3 split screen review - compared with Super Big Split screen at 600mm birding

Forum: Non-Pentax Cameras: Canon, Nikon, etc. 09-24-2012, 09:12 AM  
Leica announces 'M' 24MP live view full-frame CMOS rangefinder with movies
Posted By sunnycamera
Replies: 22
Views: 3,205
now you got a true full frame mirrorless camera - Leica M, with live view, (M9 no live view);

means, you can get a PK to M adapter, like whose used on GXR m module, to enjoy full frame old manual pentax lens.

also any other SLR lens with adapters, but 8000 usd is pricy, unless Sony gives a another compact mirrorless full frame choices.

Forum: Pentax DSLR Discussion 09-17-2012, 01:28 AM  
For All You Folks That Want An Affordable Full Frame From Pentax...........
Posted By sunnycamera
Replies: 35
Views: 3,978
Canon just released another entry level full frame camera option for us.

just get the pk to eos adapter. :lol:

or hope we can see the pentax full frame option tmr

6D on dpreview
http://www.dpreview.com/news/2012/09/17/Canon-announces-eos-6d-enthusiast-le...ull-frame-dslr
Forum: Sold Items 07-19-2012, 02:09 AM  
For Sale - Sold: Asahi-Kogaku 50mm f/3.5 Takumar (with adapter to PK)
Posted By sunnycamera
Replies: 3
Views: 1,877
indeed a nice looking lens
Forum: Pentax Film SLR Discussion 05-16-2012, 09:21 AM  
Introduce your... film Pentax!
Posted By sunnycamera
Replies: 3,422
Views: 690,214
Autofocus Film Pentax Setup: Tamron SP17-35 f2.8-4 with Pentax MZ-5n w grip





8mm f3.5 Bower fish eye
17-35mm f2.8-4 Tamron SP AF
35-70mm f2.8-3.5 Pentax M
70-210mm f4 Pentax A
400mm f5.6 Tokina RMC
2x Vivitar Macro PKA TC

Phenix 28-135 f3.8-5.2
Phenix 50mm f1.7
Forum: Photographic Technique 12-08-2011, 09:57 PM  
Extreme Macro 12:1 Photo Demo with DAL 18-55, M135mm f3.5, M50mm f1.4
Posted By sunnycamera
Replies: 13
Views: 4,839
thanks for the info, I have being digging the macro magnification formula for quite a bit time, I have not found any equation about reversed method,

generally I only found the extension equation and close-up filter equation.
Forum: Photographic Technique 12-08-2011, 07:57 AM  
Extreme Macro 12:1 Photo Demo with DAL 18-55, M135mm f3.5, M50mm f1.4
Posted By sunnycamera
Replies: 13
Views: 4,839
yeah, the setup is more an experiment, practically it won't work so well, as the view finder is so dark, like switching off lights in evening in your bedroom.

I have a Vivitar 90mm f2.8 macro, good for running out and chasing for ant,

My shot of Singapore crazy ant: with Pentax Kx on a cloudy day.


The Macro lens + extension tube + DCR-250 macro filter combo is more practical to go, but after I got the DCR-250 macro filter, I will try. My macro wiki page: artwiki:photowiki:macrophoto [ShiningWiki]

but I am impressed when I saw some one use M 28mm f2.8 revsered mount on 60 extension tube for beautiful macro shots.
this video inspires me to do this test:














You Tube



Forum: Welcomes and Introductions 12-05-2011, 09:48 AM  
Hi new manual lens fan here
Posted By sunnycamera
Replies: 5
Views: 555
finally got updated on the profile page. Vivitar 19-35 f3.5-4.5; M 50 f1.4, Vivitar 90 f2.8 macro, M 135 f3.5, Tokina 400 f5.6, and other not often used lenses
Forum: Photographic Technique 12-05-2011, 09:16 AM  
Extreme Macro 12:1 Photo Demo with DAL 18-55, M135mm f3.5, M50mm f1.4
Posted By sunnycamera
Replies: 13
Views: 4,839
Test 4: Double reversed lens combo + extension tube (all the methods I know used)

Setup: DAL18-55 revesed mounted on M 135 mm f3.5 and then onto 60mm extension tube,

to help the extreme dark viewfinder to focus, I use a light to shine through it, cast a light spot shape to move in and back to determine in-focus distance.





DAL 18-55 tune at 55mm end



DAL 18-55 tune at 18mm end

2mm shown up on 24mm width DSLR sensor, so 24:2 = 12:1 super macro now, (sorry for the long thread to get this part)



Conclusion:

Revsered mounted wide angle lens works like a macro adapter lens (like Ranyox 250), give good working distance and still produce big macro result.

Cheers. thanks for viewing.
Forum: Photographic Technique 12-05-2011, 09:10 AM  
Extreme Macro 12:1 Photo Demo with DAL 18-55, M135mm f3.5, M50mm f1.4
Posted By sunnycamera
Replies: 13
Views: 4,839
Test 3: The double combo. Reversed mount + Extension Tube

50mm prime normal mounted on a 60mm extension tube:

roughly 1:1,


50mm prime reversed mounted on a 60mm extension tube:

about 2:1 now, seems lens reversed give better magnification than normal mount.




Conclusion:

reversed mount will give you extra magnification,

more a experiment like approach than a math approach.
Forum: Photographic Technique 12-05-2011, 09:05 AM  
Extreme Macro 12:1 Photo Demo with DAL 18-55, M135mm f3.5, M50mm f1.4
Posted By sunnycamera
Replies: 13
Views: 4,839
sorry, I am still posting, not finish yet, as I am a new member, my post not coming out immediately, now I am posting the another half.

Test 2: Now, the revere mouting method,

Here is the DAL 18-55 kit lens revere mounted on the camera body,

at 55mm end reversed, about 1:1 size,



at 18mm end reveresed, now quite big macro already, since the ant just 3mm, no crop here



Now the ruler shot of 18mm end reveresed mounted on camera body with wireless flash.

that is 3.1 mm in witdh on the 24mm crop senor, roughly about 7:1 macro now


Conclusion:

reversed mount a wide angle lens will give a very good magnification, at least even for the kit lens, the sharpness is still quite good with good lighting.

and another interesting thing I found even at the 7:1 macro ration, the lens back end still can be about 4 cm away from subject, which is still quite good for working with tiny bugs,
Forum: Welcomes and Introductions 12-03-2011, 06:18 AM  
Hi new manual lens fan here
Posted By sunnycamera
Replies: 5
Views: 555
now already 10, start cutting down recently.
vivitar, pentax, tokina, mainly,

M50 f1.4, Vivitar 90mm macro, M135mm f3.5, Vivitar 100-300mm f5, and Tokina 400mm f5.6

other lens not often used.
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