แต่ถ้าเราต้องการใช้เลนส์ progressive จริงๆ สิ่งที่ผู้ใส่ต้องรู้ก่อนคือ กรอบแว่นที่จะใส่เลนส์ progressive มีความสำคัญมากๆๆๆ (size and shape are very much matter)
“I have received the mask and inserts. The mask is a good fit and I am overall quite pleased. I would definitely recommend you to anyone looking for this type of product.”
-Max B., Florida Complete Scuba Spec Package
“Just got back from vacation. They are excellent! This will make a huge difference in our snorkeling. Thank you!!”
-Pam and Richard W., Florida #137EBP Scuba Spec
“They (Smoke Spec) work great now; I appreciate it.”
-Cody D., Virginia #279 Smoke Spec
“Very excited about your product (Scuba Spec). Way to find a solution to a need!”
-Jason B., South Carolina #199EB Scuba Spec
“Hi Barry. Wanted to send you a quick note to say that the insert arrived today and works great. What I was hoping but wasn’t counting on was it fitting into my fullface mask. It does. Thanks for your extra effort and I hope you enjoy the holidays as much as I intend to!”
-Andres V., Singapore #137EBP Scuba Spec
การมองใต้น้ำ วัตถุจะขยายขึ้น 33% และใกล้ขึ้น 25% เป็นเรื่องของ Refractive index ของน้ำ เปรียบเทียบกับอากาศ เรื่องนี้เป็นความจริงที่เรียกว่า Fact base
Objects are magnified by about 25 to 30% and appear closer than they actually are by about 25%.4 (Fig 1) For example, if a fish is 4 meters away it will appear to be 3 meters away and about 25% larger than it´s actual size
“I have received the mask and inserts. The mask is a good fit and I am overall quite pleased. I would definitely recommend you to anyone looking for this type of product.”
-Max B., Florida Complete Scuba Spec Package
“Just got back from vacation. They are excellent! This will make a huge difference in our snorkeling. Thank you!!”
-Pam and Richard W., Florida #137EBP Scuba Spec
“They (Smoke Spec) work great now; I appreciate it.”
-Cody D., Virginia #279 Smoke Spec
“Very excited about your product (Scuba Spec). Way to find a solution to a need!”
-Jason B., South Carolina #199EB Scuba Spec
“Hi Barry. Wanted to send you a quick note to say that the insert arrived today and works great. What I was hoping but wasn’t counting on was it fitting into my fullface mask. It does. Thanks for your extra effort and I hope you enjoy the holidays as much as I intend to!”
-Andres V., Singapore #137EBP Scuba Spec
“Thank you for your quick reply. I must tell you that these glasses have allowed me to participate in fire that I was not able to before. I’m from a small volunteer fire department in central Alberta and had to decline wearing SCBA in a brush fire and the like because I could not see the embers. Thank you so much. You guys make an amazing product!”
-Nikki M., Alberta, Canada #279 Smoke Spec
“The Winn Parish Fire District #3 has been using the Smoke Spec #279XT for about the last year. I have been pleased with this product. I am also pleased with the service that Barry Shedrow has shown me and my Fire District. This is the only product that I plan on using from now on.”
-Harry F., Fire District #3 Chief, Louisiana #279XT Smoke Spec