IC693CPU350CA/IC693CPU350

IC693CPU350CA/IC693CPU350

IC693CPU350CA/IC693CPU350

在第十部分我們提到過可以使用轉(zhuǎn)接環(huán)將不同的鏡頭裝在不同的機(jī)身上。增距鏡和微距接環(huán)是另一種形式的轉(zhuǎn)接工具。

增距鏡

增距鏡中裝有光學(xué)鏡片，裝在鏡頭上可以增加焦距。增距鏡有不同的制式，但1.4x和2x是常見的。

增距鏡能增加焦距，同時(shí)也會(huì)減少進(jìn)光量。一般減少的進(jìn)光量相當(dāng)于焦距的增加倍數(shù)。比如在f/2.0鏡頭上裝2x增距鏡，光圈會(huì)相當(dāng)于f/2.8（譯注：f/2.0鏡頭裝2x增距鏡后光圈應(yīng)相當(dāng)于f/4，即增加2級(jí)。）。

Allen Bradley AB 150-A24NBDB SMC MCC Bucket 30A 10 HP

Westinghouse Breaker LB LB2400FS 400Amp A 400A 400 Amp

Fischer Porter 53MC5412A25BACX?DXCXX Controller 53MC5

Square D Circuit Breaker EGB24030 30Amp 30A 30 Amp A

Fischer Porter 53MC5412A25BAXX?DXCXX Controller 53MC5

Fischer Porter 53MC5412A24BBXX?XXXXX Controller 53MC5

Perkins 4328A Digital Weight Indicator Stainless Steel

Federal Pacific 145 kVA 460/460Y/266 3 ph 145kVA 460 Y 

Omron S82G-3312 12V/2.5A Power Supply S82G3312

EI Ratio 200:5A 64201 64-201 600 Current Transformer CT

Endress Hauser RIA450-S111 Process Indicator Loop

ABB 53MC5412A25BACX?DXCXX Controller 53MC5

Cutler Hammer Eaton Breaker JS JS360150A 150 Amp A 150A

Cutler Hammer Eaton Breaker JS360125A 125 Amp A

Cutler Hammer Eaton Breaker FS FS340070A 70Amp A 70A

Cutler Hammer Eaton Breaker NS361200A 1200 Amp 1200A A

Cutler Hammer Eaton Breaker FC FC3015 15 Amp 15A A

Square D CT 200:5A 600V 74 74-201 Current Transformer

Omron S82G-0305 5V/6A Power Supply S82G0305

Westinghouse DB25 DB 25 600 Amp Digitrip RMS/R 500 CLS

Foxboro I/A P0400VR Control Processor P0400 VR PO400VR

Cutler Hammer Westinghouse HFD 65k HFD3060 60 Amp 60A A

Cutler Hammer Westinghouse EHD EHD3035L 35Amp A 35A

Cutler Hammer Westinghouse LD3600 600Amp 600 A

With Rating plug LT3600T

CH Westinghouse FD FD3030L FD3030 30 Amp 30A A 30Amp

C-H CH Westinghouse HND3800T107W Optim 800 Amp 800A A

Cutler Hammer Westinghouse Breaker EHD2020 20 Amp A 20A

Cutler Hammer WH KDB KDB3400W KT3400T KDB3400 400 A Amp

Cutler Hammer Westinghouse LD LD3300 300Amp A 300A