鈞2平方，是在簽名的時候所創作出屬於自己的字，文字圖像是如能大頭照一樣，因為自己的名子中有"鈞"，而在簽名時習慣將"勻"的兩點寫成2，所以這就是鈞2平方圖像的由來。而平方是因為無論是2+2或是2X2都是4，但是鈞2+2感覺有點微妙，所以採用平方來稱呼。

鈞2 square , is at the time of the creation of the signature of their own words, words such as could mug shot image is the same, because their's name in the "鈞", and in the signature used to be "勻" of the 2 written two, so this is the origin 鈞2square. The square is because whether it is 2 + 2 or 2X2 are four, but Jun 2 + 2 feeling a little subtle, so the use of the square to say.

................(by Google Translate.My English is very poor ......sorry.

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因個人有鏡頭收藏嗜好，因此Flickr會不定時更新鏡頭使用資料，也承蒙感謝大家的欣賞。

-Camera

CANON 550D (Digital Rebel T2i / EOS Kiss Digital X4)

CANON 5D

-Lens for Canon

Canon EF/EF-S Mount

EF-S 18-55mm F3.5-5.6 IS II

EF-S 55-250mm F4-5.6 IS II

EF Sigma EX Aspherical 28-70mm F2.8

EF 20-35mm F/3.5-4.5 USM

EF 20-35mm F2.8L

EF 28-80mm F/2.8-4L USM

EF 40mm F2.8 STM

EF 70-210mm F4

Exakta-Mount

Steinheil München Quinar VL 135mm F2.8

Steinheil München Auto-D-Tele-Quinar 135mm F2.8

Leica R-Mount

Leica R 90mm F2 SUMMICRON

M39-Mount

KMZ MIR-1 37mm F2.8

KMZ MIR-1 37mm F2.8 (red P)

M42-Mount

Asahi auto Takumar 35mm F2.3

Asahi Pentax Super-Multi-coated Takumar 50mm F1.4

Asahi Pentax Super Takumar 50mm F1.4 (8 Element)

Asahi auto Takumar 58mm F2

Asahi Pentax Super-Multi-coated Takumar 135mm F2.5

Carl Zeiss Jena Flektogon Red MC 35mm F2.4

Carl Zeiss Jena Tessar 50mm F2.8

Zeiss Icarex TM Tessar 50mm F2.8

Carl Zeiss Jena Biotar 58mm f2

KMZ Helios 44 58mm F2

Jupiter 9 85mm F2

Meyer optik 50mm F1.8

Meyer Trioplan 100mm F2.8

Steinheil München Quinar VL 135mm F2.8

NIKON (AI / NON-AI)-Mount

Nippon Kogaku Japan nikkor-s 35mm F2.8

Nikon NIKKOR-S.C 50mm F1.4

Nikon NIKKOR-S.C 55mm F1.2

KIRON MC 28MM F2

OM (OLYMPUS)-Mount

OLYMPUS ZUIKO AUTO MACRO 50 F2

OLYMPUS ZUIKO AUTO MACRO 90 F2

Other-Mount

canon LTM 85mm F1.8(change for M42 Mount use)

carl zeiss jena Tessar 80mm F2.8(change for M42 Mount use)

Zeiss Ikon Preminar 10.5cm F4.5(change for M42 Mount use)

Boyer Saphir B 100mm F4.5(change for M42 Mount use)