IC693CPU350CA/IC693CPU350

IC693CPU350CA/IC693CPU350

IC693CPU350CA/IC693CPU350

IC693CPU350CA/IC693CPU350

在第十部分我们提到过可以使用转接环将不同的镜头装在不同的机身上。增距镜和微距接环是另一种形式的转接工具。

增距镜

增距镜中装有光学镜片，装在镜头上可以增加焦距。增距镜有不同的制式，但1.4x和2x是常见的。

增距镜能增加焦距，同时也会减少进光量。一般减少的进光量相当于焦距的增加倍数。比如在f/2.0镜头上装2x增距镜，光圈会相当于f/2.8（译注：f/2.0镜头装2x增距镜后光圈应相当于f/4，即增加2级。）。

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