這當然不正常！買的時候沒檢查嗎？可以退換嗎？

我猜此機是 Refurbished 拆修清潔之後組裝回去時觀景窗沒裝好

（或因摔過，觀景窗內部變形根本裝不好）

〔建議〕試拍一卷正片、架腳架、開大光圈、仔細對焦在近物來測試對焦準確度

如果正片對焦是準的，以後拍攝可以使用外掛式熱靴水平儀來抓水平

或憑經驗抓水平

如果正片對焦不準，可以先試著自己調

我沒有調過，我的 Mamiya 7 II 是買全新的很準確

如果你看英文沒問題，底下是 JD 〔 RF 調校〕的經驗

「 I pulled out the little plastic plug to the right of the viewfinder.

Inside are two screws. The one farther in (on the top) is the vertical adjustment. Don't mess with it unless it's off. The raised screw is the rangefinder. Put a lens that you know stops at infinity on the camera and haul it over to it's farthest distance. Point the camera at a distant object (antennas on the top of the "Fuji" billboard on the entrance to Columbo Mall closest to Benifica stadium worked for me), distant like a mile is good. adjust the raised screw a bit and look through the viewfinder at what you did. Once the images are as perfect as you can make 'em, turn the lens back and forth and check again.

Remove the lens and put it on again, and check. It should be rock solid.

I was surprised mine went out of focus. It's ridden in a motorcycle tank bag for hundreds of miles and it never lost adjustment.

10 minutes to do the adjustment. 15 if you take your time.

Good luck!

JD 」

如果不會調可以送專業店家維修

祝你好運！

〔補充〕

〝觀景窗左邊偏紫現象〞眼睛在觀景窗正中央觀景是不會察覺的！

只有將【眼睛向觀景窗右邊移動】再向左看才會看到

難怪我拍了那麼久都沒發現

這應是觀景窗觀視角度偏移屈光折射產生的觀景窗鏡組鍍膜色彩

可以不必在意

畢竟我們看觀景窗是要從【觀景窗正中央觀景】才正確

安啦！專心拍照吧！

Mamiya RB67 的重複曝光（ Multiple Exposure ）是做在片盒

在片盒上方底片撥桿的下方，把重複曝光小撥桿撥向前

再撥底片撥桿，此時底片並沒有前進一格！再上弦（ Cock the Shutter ）

同一格底片就可以再次曝光，以上程序可以一直重複

但是要注意減曝光，以免過曝！

〔注意〕完成重複曝光後要記得把重曝小撥桿撥回原位！

Mamiya 系列的使用說明可以到底下 Download

http://www.mamiya.com/customerservice1.asp?id=3&id2=115%20Click%206X7%20and%20download%20pdf

先按左邊 Instruction Manuals 進入後再按右邊 DOWNLOADS

再選 6x7 再選機種，就可以 Download 機種的 PDF