2005磨鏡班-光柵圖像集

[layanata]

係呀. 非常方便的多功能 dc!

相片質素雖然ma ma , 但係Canon DC在功能上都幾細心...

[wzx--wzx]

看來 低邊比較普遍.

[Chanlunlun]

看來 低邊比較普遍.

Dears,

Turn down edge is a very common error in mirror polishing. I normally use a bigger than normal mirror blank so that I can grind away the turn down edge portion by 1200 carbo after final figuring.

Best regards
Chan Yuk Lun

[wzx--wzx]

Dears,

Turn down edge is a very common error in mirror polishing. I normally use a bigger than normal mirror blank so that I can grind away the turn down edge portion by 1200 carbo after final figuring.

Best regards
Chan Yuk Lun

不好意思,英文看不懂.能用中文嗎?

[natameow]

睇到咁，令我覺得好難啊

[Wongsir]

Dears,

Turn down edge is a very common error in mirror polishing.
I normally use a bigger than normal mirror blank so that
I can grind away the turn down edge portion by 1200 carbo after final figuring.

Best regards
Chan Yuk Lun

wzx--wzx,

中文譯本:
==============

親愛的:

磨低邊是很常見的現象。
我通常會用一塊比正常主鏡尺寸大一些的工具板，
這樣我可以在幼磨1200號砂之後便矯正了磨低邊部份。


陳玉麟 啟

[wzx--wzx]

謝謝啦!!
細磨時留下的低邊不太好辦.
拋光時如果拋光盤的外邊翹邊,不及時修削乾淨,哪怕僅拋幾分中留下的低邊,它雖然不寬,僅幾分之一毫米,但是非常深,修改10個小時還不一定能修掉.
謝謝!!

[c++]

我所理解的是，chansir用一個稍大的主鏡坯，在拋物線化好之後用1200毫砂把低邊磨花，乾脆不要讓低邊反射光線 ？
是不是我理解錯了？ 請前輩、學長指正。

Dears,

Turn down edge is a very common error in mirror polishing.
I normally use a bigger than normal mirror blank so that
I can grind away the turn down edge portion by 1200 carbo after final figuring.

Best regards
Chan Yuk Lun