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I don't have Photonis, so I can't make a comparison. The color of the phosphor is a matter of personal preference. Personally, I prefer green a bit more, but the image looks clearer with unfilmed tubes.

Omni 7 is probably cheaper for you. I bet the high gain has better specs too. just up to you. neither are a bad choice

I would go standard gain if you don’t have manual gain on the housing, otherwise they’ll usually be at max gain.

對原裝就有附

@@shan-chunhsu7666 但應該用處不大？ 我想不到什麼情況要用遙控器控制它

@@slashkensol 確實如此吧，我唯一想到的就是當你一手拿步槍或是其他東西時，可以使用另一手來操作選單

@@shan-chunhsu7666 的確 如果把遙控貼在步槍上可以在瞄準時操作 但應該又不會有這麼極端情況的需要XD|||

@@slashkensol 沒錯我們只是一般玩家

The same is all 40 degrees

The one I bought second hand does not have a data sheet.

您好呀，這都是3代，新的高fom一隻大約在20左右，也有二手的便宜點，因為我也是在賣的，渠道就保密拉抱歉，大概就是美國少許歐洲，現在也有陸製的2+ 一隻約4-5萬

@@shan-chunhsu7666 哇！一支20萬比中等fom 的3代貴上不少，快3倍😱我看了您的L3 filmless v.s. supergain v.s. GP omni7 影片，覺得高fom好15%不太划算哈哈，而且filmless更偏白看起來對我也比較舒服。您覺得L3 filmless的解析度和S/N夠給力嗎？最近我想入坑夜視鏡，看上您家露天的L3 三代filmless WP，想問看看是不是L3 filmless v.s. supergain裡同一根管子？因為您的wp filmless影片裡和露天賣場的照片好像稍微偏綠，不知道是不是正常的😅還有方不方便提供參數，或是販售影片裡那支L3 unfilmed ٩(˃̶͈̀௰˂̶͈́)و 真的太謝謝啦～ 您拍的影片幫助我了解不少(⁎⁍̴̛ᴗ⁍̴̛⁎)👍 至於gen 2+，我覺得photonics echo雖然貴了點但還不錯，autogating也很厲害。中國的我沒太多了解（比較相信美國技術？）但在低光環境還是gen 3比較給力吧😂

ok i try

@@shan-chunhsu7666 you have discord or telegram to share so we can talk please? I would like to ask you few things regarding the Jerry FB. I’m also interested to buy one

夜視儀多少製作過程都會產生黑点

@@shan-chunhsu7666 请问一下，是你自己组装的吗？需要什么特别工具，例如真空抽取housing 里面的空气。还是拼凑在一起就能用了。 看上去夜视管像是GEN 2，比起GEN 3虽然没那么清晰，但在夜景还算是看得清楚。

@@Az-fb2gf 对我自己组装的，需要一些特殊板手以及抽真空和填装氮气设备，填装氮气是为了防止镜片起雾以及清洁内部，跳过此步骤仍然能正常使用，增像管是三代没错，那天 没月光又在树林中所以环境极为昏暗，难以拍摄，也可能跟拍摄设备有关，肉眼看更清晰一些

@@shan-chunhsu7666 谢谢，明白，不需要抽空和氮气也可以。但会不会有什么缺点吗？例如清晰度或者功能性以及不工作。 我看了某些博主也是直接安装同是也看某些博主有。 虽然我有上网去找解说课程对于新手的我，一时搞不懂。 要是您能做多些安装课程和原理课程那更好。感谢！

@@Az-fb2gf 不抽真空含氮气对于使用并无太多影响，若缺乏此步骤我能想到的就是夜视镜house里可能残留水气，可能在镜头上起雾，或是导致发霉，对于电子零件的影响目前 我没看到相关的研究，有机会可以拍组装过程

Pepper is very common in various imaging tubes, and it is considered an acceptable flaw in the manufacturing process. However, in the case of aviation imaging tubes with the suffix "ua," there are strict limitations on the size and position of pepper particles.

@@shan-chunhsu7666 Thanks a lot for responding. I guess I was expecting a HD tube that looks as clear as a camera for ~$4k since the green phos. I had before was a bit clearer. I was requesting a RMA from the manufacturer.

@@Steven_M. "Cloudiness" can be caused by a high EBI. A tube with very high EBI will have a veiling glow across the screen that lowers contrast. This will be worse when the temps are high and almost go away when the temps are very low. I am not saying this is the case with your tube, I am only saying that I have had a couple of high EBI tubes that had a milkiness to the view. This video shows the effect that EBI has by comparing two tubes, one with lower EBI (the first tube) and the second with the higher EBI. The first thing you see is the glow in the tube when there is zero illumination (Objective capped). Note how much brighter the second tube is when there is zero light. This is the signature of high EBI. If you go into a dark room and cap the objective, if you can see that there is a strong glow in the eyepiece with no signal, that is high EBI. Even the lowest EBI tube will have some EBI, and usually it has to be pretty meaningful before it will cause an issue, but I would not dismiss it. th-cam.com/video/kzVMwzoZwOQ/w-d-xo.html This is another video. Threshold level means that you are in the darkest condition where a tube will produce an image. A .1 EBI tube (all else being equal) will produce a usable view in much darker conditions than a 1.5 EBI tube will As the video shows, you can easily see the difference between .1 and .6, or between .5 and 1.5. Important to remember that EBI goes down as temps drop. th-cam.com/video/5qRl0Dkf8dM/w-d-xo.html *I am not sayin that this is what you are seeing* . I am only saying that it is a possibility. The military used to allow an EBI of 2.5 or less, but with OMNI 8, the allowed it to be as high as 2.5, and now they have back tracked and under the latest contract, the max EBI is now 2, which is the lowest they have ever specified. Most tubes are better than this, running between .8 and 1.6 (based on the specs I have seen). One thing to note is that in general, the higher the photocathode sensitivity, the more EBI there could be. This is just a general rule, and there are always exceptions. The tubes you see in the second video I linked don't have particularly hot photocathodes, but they do have rather unusually low EBI. The third tube still has a pretty low EBI (.6), but it has a much higher photocathode sensitivity.

@@aesthetic87804g+ better than filmless?? That’s a joke. It’s no contest at all, filmless wins by a mile

@@aesthetic8780😂

Photocathode Sensitivity

視野部分是目前我接觸過遮擋最小，說完全不影響是不可能，出瞳距一樣的，戴頭盔上不需要特別改變眼睛和目鏡距離

@@shan-chunhsu7666 謝謝您的回覆

@@shan-chunhsu7666 您好，再請教一下如果是雙眼實際使用還會有遮擋的感覺嗎，還是會被彌補呢

@@airsofter0603 太客氣啦，我是覺得雙目使用下干擾感覺更小，可能是會腦補吧

@@shan-chunhsu7666 謝謝您的回覆