由图3可以看出,BWO-RF模型、SSA-RF模型和PSO-RF模型在第100次迭代时均已稳定,3个混合模型的适应度范围分别为0.048~0.075、0.053~0.084和0.054~0.076,分别在第20次、第22次和第26次迭代时收敛至适应度最优值,且在适应度值优度上BWO-RF>SSA-RF>PSO-RF...
Canon RF 100-500mm f/4.5-7.1L IS USM (77mm filters, 54.0 oz./1,530g with tripod collar as shown, 48.3 oz./1,370 g without collar, 2.9-3.9'/0.9-1.2 meters close focus, $2,899). bigger. I got mine at B&H. I'd also get it at Adorama, at Amazon or at Crutchfield, or ...
Canon review website with every Canon EF Lens and all RF lenses, so you can read the all of the reviews, see the specification and check the price, all from one page.
At review time, if you have an EOS R-series camera, the Canon RF 24-105mm F4 L IS USM Lens is the best relatively lightweight, moderately priced, general-purpose lens option. The RF 24-105 L lens was introduced with Canon's first mirrorless camera, the EOS R. Since that time, addi...
Amplifier Research 100L LF/RF Power Amplifier, 10 kHz - 220 MHz 工厂翻新 要求信息 Amplifier Research KAW4040 This is a class AB wideband RF power amplifier 200 MHz to 500 MHz 500 Watts 50 Ohm Please review data sheet for additional information 工厂翻新 要求信息 ENI A-300 RF AMPLIFIER...
KamLan 50mm f1.1 II Review APS-C 80 8/7 11 Ø62mm KamLan 55mm f1.4 FF 88 8/6 RF Kamlan 70mm f1.1 APS-C 112 Kipon “Elegant” Lenses Kipon is a Chinese lens manufacturer but uses German designs. I’ve spent some time with the owner of Kipon, and have been friends with him...
来自Canon Rumors的消息,佳能在单反时代生产了一款EF 28-300mm F3.5-5.6L IS USM镜头,这款镜头也受到了一部分摄影师的喜爱.目前佳能有一些可能会发布这款镜头的RF版本,不过目前也没有确切的消息来证实.目前有消息显示专利JP 2023–104137a是这款RF 24-300mm F2.8-5.6L IS USM的光学公式.该专利显示了从F2.8...
|Canon RF 85mm F1.2 Review (vs. EF Version) 4587 -- 10:07 App 【纯技术评测】佳能RF50mmF1.8STM | RF小痰盂 |Canon RF 50mm f_1.8 STM lens review with samples 2689 1 7:03 App 【2023镜头指南】RF 14-35mm F4L | 小巧好用的超广角小三元 4285 2 8:19 App 【纯技术评测】佳能RF15...
Core 300 Air Purifier Air Purifier number of items 1 1 1 1 material Nylon Nylon Nylon Glass FiberCustomer reviews 4.8 out of 5 stars 4.8 out of 5 1,385 global ratings 5 star 88% 4 star 9% 3 star 2% 2 star 0% 1 star 1% How customer reviews and ratings work Review this product ...
3.Pressure Rating:CLASS150/CLASS300/CLASS600 4.Flanged end&Blow-out proof stem&Fire safe construction&Anti static device 5.Ball Type: Floating Ball 6.Port Type: Full Bore 7.ISO 5211 Mouting pad 8.Material: WCB, WC6, WC9, LCB, CF8, CF3, CF8M,...