Haptime YGH-515 Blow LED Lamp Overview
Key Features
Creative Design Blowing On/Off LED Kerosene Lamp is a nostalgic nod to the old-fashioned kerosene lamps, but with a modern twist. Powered by built-in energy-saving lithium battery, this novelty item has all the looks and charm of kerosene lamp, but with a bright and durable LED light that can shine continuously for over eight hours
A fun and unique aspect of the Creative Design Kerosene Lamp is the blowing on and off function. The lamp can be turned off simply blowing into it, mimicking the old open flame lamps of yore. In a fun twist, blowing into the lamp is also how you turn it on! A retro control wheel on the side of the lamp allows you to adjust the brightness for perfect mood lighting.
When you blow to lamp-chimney ,LED light will be on.Light can be adjusted dim/strong , it will as familiar as candle when dim light (There is a ON/OFF power switch, please turn on the switch before you blow it on)
Super-bright 1W LED light ,energy saving ,environmental protection , durable.Built in 1200mAh environmental lithium battery ,USB charge function.Can lighting continuously more than 8 hours
Creative Design USB Powered LED Blowing On/Off Candle Lamp Mood Light Air Kerosene Lamp is big enough to be a substantial light source, and compact enough to fit easily on any desk or table
Features:
-Turn On & Off with just a simple blow over the top.
-7.5" Tall Oil Lamp Design is elegant and timeless.
- Easy to adjust dial, for the optimal brightness.
- Realistic Flickering Wick Effect when the dial is set to the dimmest setting, will be similiar to candle.
- Built-in Rechargeable Battery runs up to 4-20 hours on one charge.
- Included USB Cord allows you to recharge the battery when it's running low.
- Ultra-bright LED light,eye protection and energy saving.
- Shatterproof Chimney Top makes it a great lighting option for all occasions!
Specifications:
* Style: Traditional/Classic
* Color: Red / Blue / Green
* Switch Type: Dimmer, On/Off Switch
* Input: DC5V/500MA
* Light source type: LED
* Material: Transparent is GP, the other is ABS, the base is glass
* Built-in lithium battery: 400mAH
* Charging time: USB charging for 3 hours
* Using time: About 4-20 hours (Full of electricity)
* Size: 195 * 84 * 80mm
* Lumen: 16-18LM
* Easy to control and flexible to use. A great unique gift for friends, family, students, teachers, coworkers, etc.
Package includes:
* 1x Blowing Control Table Lamp
* 1x USB Cable
* 1x User manual

Medium Format
Medium format refers to the size of your roll of film (or if you’re talking digital, it’s the size of the camera sensor). It really just means that you are shooting on a bigger piece of film than you do with a 35mm camera. The increased size of medium format film means a much larger negative. This will give you finer details and less grain.
Choosing your Right Medium Format Camera
Twin Lens Reflex (TLRS)
TLRs use two objective lens of the same focal length. The photographic objective lens is the one that is used to take the picture. The other lens, called the view lens, is connected to the viewfinder. Most TLRs are fixed focal length, and the more expensive models may incorporate a rudimentary room function. Most TLRs use a leaf shutter system, resulting in high speeds, quiet operation and low shutter vibration. There are also close-up, wide angle and telephoto adapters for TLRs.
Some popular TLRS cameras are: Yashica MAT-124G, Rolleiflex 2.8F, Minolta Autocord and Mamiya C330


Rangefinder
Rangefinder cameras are medium format cameras with a range finder. This negates the waistline, viewing that most TLRs carry. They are also much smaller than TLRs, and allow for easier point and shoot photographs. They tend to have limited focusing ranges, and do not have lenses larger than 180mm or 200mm. Rangefinders are quieter and easier to focus in dim light. They are mostly fixed lens models, but higher range models also provide for interchangeability.
Some popular rangefinder cameras are: Fujica G690, Mamiya 6/7, Bronica RF645, Norita 66 and Pentax 67
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