กลับไปยังรายบอร์ด โพสต์ใหม่
วันนี้เอาเลนส์ medium format ที่ดี ราคาไม่แพง แต่คนไม่ค่อยนึกถึงกัน คือ pentax 6x7 ซึ่งมีหลายขนาดด้วยกัน วันนี้เอาตัว 165mm f2.8 มาลอง
ส่วนกล้องก็ Pentax ks-1
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2017-3-16 06:42

SMC Pentax 67 / SMC Pentax-6x7 165mm F2.8
Sharpness        
9.1
Aberrations        
9.4
Bokeh        
9.7
Handling        
9.3
Value        
10.0


Read more at: https://www.pentaxforums.com/len ... .html#ixzz4bRQOx35a
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2017-3-16 06:43

Description:       
Portrait lens/short tele. Field of view 24 degrees horizontally, which corresponds to a 85mm lens on a 24x36mm camera.


Read more at: https://www.pentaxforums.com/len ... .html#ixzz4bRQdQqBO
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2017-3-16 06:43

ผลงานภาพและเนื้อหาทั้งหมดภายในเว็บไซท์เป็นลิขสิทธิ์ของผู้สร้างสรรค์ผลงานนั้นๆ หากชื่นชอบหรือต้องการนำไปเผยแพร่กรุณาแชร์ลิ้งค์กระทู้ไปนะคะ ขอบคุณคะ ^_^

มาดูสเปค กันครับ
SMC Pentax-6x7 165mm F2.8
Image Format
6x7        Lens Mount
Pentax 6x7        Aperture Ring
Yes (no A setting)        Diaphragm
Automatic, 10 blades
Optics
6 elements, 5 groups        Mount Variant
Inner Bayonet        Max. Aperture
F2.8        Min. Aperture
F22
Focusing
Manual        Min. Focus
160 cm        Max. Magnification
0.13x
Filter Size
67 mm        Internal Focus
No        Field of View (Diag. / Horiz.)
30 ° / 24 °
Hood
Built-in        Case
S120-150
Lens Cap
Coating
SMC        Weather Sealing
No        Other Features
Filter Bayonet
Diam x Length
91.5 x 98.5 mm        Weight
835 g        Production Years
1982 to 1989
Notes
Engraved name: smc PENTAX-6x7 1:2.8 165mm
Variants
1982: smc PENTAX-6x7 1:2.8 165mm (this lens)
1989: smc PENTAX 67 1:2.8 165mm



Read more at: https://www.pentaxforums.com/len ... .html#ixzz4bRR2KyCU
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2017-3-16 06:48

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2017-3-16 06:48

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2017-3-16 06:48

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มาอ่านเขารีวิว กันครับ
Lens Review Date: January 30, 2017        I can recommend this lens: Yes | Price: $150.00 | Rating: 10

Pros:        lens speed, 10 blade aperture, built-in hood
Cons:        weight
Sharpness: 9    Aberrations: 9    Bokeh: 10    Handling: 9    Value: 10    Camera Used: Pentax 67   

This is just a great lens! It has many advantages that you will never get in any other medium format lenses:
1) It is fastest portrait lens for a such medium format frame size. There is other faster primes but they are all intended for a smaller frame size.
2) 10 blade aperture. It helps to gentle blur background for smoother bokeh
3) Built-in hood
4) 67mm filter thread which is more common that 77mm.

It has only one negative side -- its weight too much for me. Anyway highly recommend!


Read more at: https://www.pentaxforums.com/len ... .html#ixzz4bRRZzIrO
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2017-3-16 06:50

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2017-3-16 06:50

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2017-3-16 06:51

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อ่านเลนส์รีวิว

Pros:        Excellent IQ
Cons:       
Sharpness: 9    Aberrations: 10    Bokeh: 10    Handling: 9    Value: 10    Camera Used: Pentax 67   

I used this lens (almost) exclusively on my uncle's old Pentax 67 camera for a couple weeks. I can't give an accurate value estimate because he bought the system + three lenses for a couple hundred dollars second-hand.

Positives:
-really standout IQ
-surprisingly light for such a long lens

Negatives:
-"Auto" switch easily slides back to manual mode and needs to be re-cocked. This took a while to get used to, as when it's on manual the built-in light meter doesn't work.

Of the lenses in his kit this was by far my favorite to shoot with. It's an awesome focal length on medium format, and the aspect ratio fits the field of vision really well. It's also worth noting that it's not the easiest lens ever to focus. I realize this is mainly a fault of the Pentax 67, but if you're shooting at f/2.8 focus is very hard to nail. Despite that I think it's an amazing lens and I would highly recommend it.


Read more at: https://www.pentaxforums.com/len ... .html#ixzz4bRSOGd00
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2017-3-16 06:52

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2017-3-16 06:52

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Pros:        Sharp, Fast, 85mm (135 equivalent), and cheap
Cons:        None apparent
Sharpness: 9    Aberrations: 9    Bokeh: 10    Handling: 10    Value: 10    Camera Used: Pentax 67   

I really enjoy shooting with this lens. I admittedly have only put one role through it and have not closely scrutinized the photos -but I'm not the type of guy to peep. The images have come out great with excellent sharpness and contrast. The value of this lens/system is second to none. My other lens in my kit is the 100mm f4. They pair nicely together where the 165 is great for portraits, the 100mm is better for surroundings. I'll be picking up a 45 or 55mm in the future and I think my kit will be complete.


Read more at: https://www.pentaxforums.com/len ... .html#ixzz4bRSoJwTd
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2017-3-16 06:55

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2017-3-16 06:55

ผลงานภาพและเนื้อหาทั้งหมดภายในเว็บไซท์เป็นลิขสิทธิ์ของผู้สร้างสรรค์ผลงานนั้นๆ หากชื่นชอบหรือต้องการนำไปเผยแพร่กรุณาแชร์ลิ้งค์กระทู้ไปนะคะ ขอบคุณคะ ^_^

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Pros:        Handy F2.8
Cons:        Random loss of contrast
Sharpness: 9    Aberrations: 9    Bokeh: 8    Handling: 9    Value: 10   

I like this lens. It pulls up shots I thought wouldn't have worked out. I tend to shoot in low light, hand-held, wide-open and sometimes back-lit. Out of a dozen or so times I put this lens on for color shots, I had two images with a degree of loss in contrast due to side lights getting in, but still I got a usable image. In dozens of black & white images it was easy to use with no signs of problems. Kodak Ektar looked good as well as a few rolls of Portra 160NC looked equally good. I think that this is a little more prone to flare issues and the built-in hood is only half adequate. Otherwise... "I like this lens"!


Read more at: https://www.pentaxforums.com/len ... .html#ixzz4bRTCGylB
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2017-3-16 06:56

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2017-3-16 06:57

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สำหรับกล้องค่ายอื่นๆก็มี adapter แปลง สามารถนำเลนส์นี้ไปใช้ได้เช่น
Pentax 67 6X7 mount lens to Canon EOS 7D 50D 5D 600D 6D Mount Camera Adapterราคา 1376.68บาท ค่าส่งฟรี
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2017-3-16 07:02

Pentax 67 6X7 mount lens to Nikon AI D60 D80 D90 D300 D700 Camera Adapterราคา1376.68บาท ค่าส่งฟรี
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2017-3-16 07:03

Pentax 67 6x7 P67 Mount Lens To SONY Alpha A Minolta Adapter A380 A900 A77 A99ราคา1658.72บาทค่าส่งฟรี
Pentax 67 to Sony.jpg
2017-3-16 07:05

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2017-3-16 07:06

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2017-3-16 07:06

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ส่วนราคาเลนส์ก็ไม่ได้แพงมากมาย ลองหาดูที่ ebay
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2017-3-16 07:08

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2017-3-16 07:08

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2017-3-16 07:08

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เป็นทางเลือกที่จะลองในราคาที่ไม่แพงมากนัก แต่คุณภาพดี
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2017-3-16 07:10

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2017-3-16 07:11

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The 165mm lens is one of the main reasons I bought a P67. It's the same angle of view as a 85mm lens in 35-mm format, my favorite! It's very sharp. I try to use f/5.6 or f/8. As mentioned f/22 is not going to be optimum in any MF lens. I do urban landscape and handhold it a lot. I try to use 1/500 shutter speed.
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2017-3-16 07:14

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2017-3-16 07:14

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2017-3-16 07:15

ผลงานภาพและเนื้อหาทั้งหมดภายในเว็บไซท์เป็นลิขสิทธิ์ของผู้สร้างสรรค์ผลงานนั้นๆ หากชื่นชอบหรือต้องการนำไปเผยแพร่กรุณาแชร์ลิ้งค์กระทู้ไปนะคะ ขอบคุณคะ ^_^

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ขอจบด้วยรูปย้อยแสง ครับ
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2017-3-16 07:17

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2017-3-16 07:17

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กลับไปยังรายบอร์ด