Zixia Fairy, Never Miss You Again - TAMRON Tamron 35mm1.8 Di VC Lens Unpacking
The last original post was already three and a half months ago. Hahaha, that was the last time the D810 was used with Yongo's poor students. Truthfully, I feel it's really unfair to my D810. It's sad to see such a great camera fall into the wrong hands. As the old saying goes, "A wife doesn't leave the church, even if you have to squeeze your meal money to just 300 yuan a month, you still want to live a good life." Then came the lens selection—still suffering from the same decision fatigue. I estimate there are about five months left until the end of the semester, so the budget is around 3,000 yuan. Time to rely on some shopping coupons again. I was stuck between the 85mm, 35mm, and the used 28mm. During that period, I also looked at Tamron’s 45mm, 35mm, and 85mm, but they were over budget, so I passed on them. But as a car dog, I’m soon going to participate in the FSAE competition and need a telephoto lens. So my focus shifted to Canon or Xiaolong lenses. (If I had the money, I would’ve gone for the ghost lens.) However… That night, while casually browsing the second-hand market, I stumbled upon a Dragon special event—T35 was selling for only 2830! ! ! ! (I didn’t consider T45 because of Yongnuo; T45 is actually better.) Woc! ! ! ! ! ! 2830! ! ! ! ! And it was even interest-free! ! ! ! What bike? ? ? ? ? Then I went to the bathroom and was gliding through the thought process, closed my eyes, and staged a little drama (the result of forgetting the coupon!!!!! WOC, I had over 100 yuan in coupons, super distressed.) Everyone must pay attention! Even if it's an interest-free deal, it's still an interest-free coupon. By the time I realized, it was too late to change. Until the first payment, I found out there was a fee! The appearance of emmmmmmmmmmmm won't waste everyone's time (it's really a bit lazy = =) Baidu will come out one by one. Well hhhhhhhhhhhhhh As a hard-to-find student poor dog who rarely gets to touch a metal head, the arrival moment was almost swift. ! Ah, this is the lens! I have to say the craftsmanship is very good (after all, my reference is just Yinguang + Yongnuo...). The cold texture of the metal is really comfortable ahhhhhhhhhh The camera is also very harmonious, just can be placed in offco, meizi Since I bought it, I changed to silver for personal use. Usually, it's hung on the 810 and I'm really in love with it. 35mm Magnum is really worthy of its name, with silver it can't feel because the aperture is too small! Ok! To the point! Hit the blackboard. In fact, before we knew it, we knew that the biggest problem with this lens was purple fringing and spotting. Honestly, the light onion ring seems to be a common problem in the new Dragon. Look at the evaluation on 24-70G2. But to be honest, for me like this, it didn't matter much. hhhhhhhhhhh However, purple and green edges, this is a real problem that affects the user experience. In fact, I think this problem can be solved. Emmmmmmmmmm Forgive me for the moment I couldn't find the previous test chart. Let me express it in words. T35 in the case of large light ratio will appear very purple and green edges, if this happens, I usually take a piece of the desired effect (such as backlight) Then go to the left and take a picture. If you're happy, go back and use the mask to repair it. (In fact, when you're lazy, you only shoot the left exposure and then pull it back later. After all, this is the D810.) Others are just as good, as good as the 35mm head, sweeping streets, sketches, portraits can be taken into account, and occasionally come to the scenery. However, the most recent and best use is the closest focusing distance! ! ! ! ! ! ! ! It's just a small macro (forgive me for not using a real macro)! It was a blessing for me to take a model. Okay, no BB, let's just watch movies! Close up, it is really pleasing. Photo courtesy of Jin Gong’s friendship About the cover picture or want to talk about hhhhhhh This is a fairy lady, wearing a white dress to make a model of the young lady, think or trouble my universal model room friend Jun 233333 (distressed him a second) Unfortunately, the rough man couldn't get that feeling. "You're quick, my head is dizzy!" In simple terms, I personally think this lens is still worth buying. Don't worry about it, although there are shortcomings, but I think I can tolerate it. Excellent price, good workmanship, plus the image quality and excellent close-up ability, so that the charm of the Purple Jasmine extraordinary. Anyway, he will not enter a new head before returning to the bloodstream, and she is also arrogant and hungry. If you are interested, next time you can talk to everyone about the silver and offco upgrades Talking about headphones is also not a bad idea, but it is hard to force students to have only hm650+n20, n30, and k545. Thank you for reading.
RF Coaxial Connectors, commonly abbreviated as RF Coax Connectors, are specialized devices that play a pivotal role in facilitating the seamless transmission of radio frequency (RF) signals over coaxial cables. Their importance lies in ensuring reliable and efficient signal transfer across diverse communication systems, enabling seamless communication networks. Below is a comprehensive introduction to RF Coaxial Connectors, delving into their general characteristics, technical specifications, and widespread applications across various industries.
1. General Characteristics
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In Summary
Impedance Matching: Most RF Coaxial Connectors are designed with a specific characteristic impedance, typically 50Ω or 75Ω, to match the impedance of the coaxial cable and the transmission line. This matching helps prevent signal reflections and maintains signal integrity.
Durability and Reliability: RF Coaxial Connectors are made from durable materials that can withstand various environmental conditions, including temperature fluctuations, humidity, and vibration. They are also designed for repeated connections and disconnections, ensuring long-term reliability.
2. Technical Specifications
Frequency Range: The frequency range supported by an RF Coaxial Connector depends on its design and materials. Some connectors are designed for low-frequency applications, while others can handle high-frequency signals up to several gigahertz (GHz).
Power Handling: Connectors have different power handling capabilities, ranging from low-power applications to high-power transmission systems.
Connection Mechanism: RF Coaxial Connectors come in various connection mechanisms, including bayonet (e.g., BNC), threaded (e.g., SMA, TNC, N-type), and push-on (e.g., MCX, MMCX). These different mechanisms offer varying levels of ease of use, durability, and performance.
3. Common Applications
Telecommunications: RF Coaxial Connectors are widely used in telecommunications infrastructure, including cellular networks, satellite communications, and microwave links.
Broadcasting: They are essential components in broadcasting systems, such as television and radio transmission, ensuring high-quality audio and video signals.
Test and Measurement: In test and measurement equipment, RF Coaxial Connectors are used to connect devices under test to measurement instruments, allowing for accurate and reliable measurements.
Military and Aerospace: Their durability and performance make RF Coaxial Connectors ideal for use in military and aerospace applications, including radar systems, missile guidance, and satellite communications.
Consumer Electronics: Many consumer electronics devices, including cable television set-top boxes, high-definition television (HDTV) receivers, and digital audio/video equipment, utilize RF Coaxial Connectors for signal input and output.
4. Key Advantages
High Signal Integrity: The coaxial design and impedance matching of RF Coaxial Connectors help maintain high signal integrity over long distances and in challenging environments.
Versatility: The wide range of connection mechanisms and frequency ranges supported by RF Coaxial Connectors makes them suitable for a variety of applications.
Durability and Reliability: Their durable construction and ability to withstand harsh conditions ensure long-term performance and reliability.
In summary, RF Coaxial Connectors are essential components in various communication systems, providing reliable and efficient transmission of radio frequency signals. Their coaxial design, impedance matching, and durable construction make them ideal for a wide range of applications, from telecommunications and broadcasting to military and consumer electronics.