1. U can buy it directly from manufacturers....but in quantity...10 to 20 pieces rs250/- each approximately.. 2. if you want 1 or 2 pieces then you can get it from eyepieces Which at least have 3 elements in it ... From Amazon or similar sites 3. Search for scrap market for old damaged camera or binaculars, optics... you you may get it at very cheap rate..
concave lens doesn't have real focal point ...so it is difficult to me to calculate.....and in this project focal point doesn't matter ..... the distance from eyepiece to Barlow lens is matters...👍
▶Timestamps◀
00:00 Assembly
06:48 Testing
07:13 Mobile Attachment
08:14 Live Demonstration
09:37 Result
09:42 outro
Barlow was fine, as I have made my own, but I really loved the mobile holder!
Very useful video for those who need it...❤❤
8:22 when you removed the barlow, after that were you using any eyepiece? Or that was prime focus view??
Yes, there was a eyepiece inside attachment
The focal leantgh and measurement are not given
The concave lenz F L is shown in minus numbers it can be measured
yes.. but not required
Can you post the video of diy eyepiece?
I already posted two videos of diy eyepieces.... please go through the video list..
Upload a video for spotting scope and how you can use different focal length eyepieces on a spotting scope
Hey brother please can you provide the link for these lense because I am unable to find 22mm achromatic lenses.
1. U can buy it directly from manufacturers....but in quantity...10 to 20 pieces rs250/- each approximately..
2. if you want 1 or 2 pieces then you can get it from eyepieces Which at least have 3 elements in it ... From Amazon or similar sites
3. Search for scrap market for old damaged camera or binaculars, optics... you you may get it at very cheap rate..
@@creativeamol thanks for the reply
Hey I got the achromatic doublet lens from my old binacular I think it's fl must be around=150mm.i want to make a kellner eyepiece will it work.
@@mozillafirefox5441 no... That lens is objective lens you need fl around 50mm.
@@creativeamol thanks for the reply.
The focal length of lenz and measurements are not given
concave lens doesn't have real focal point ...so it is difficult to me to calculate.....and in this project focal point doesn't matter ..... the distance from eyepiece to Barlow lens is matters...👍
Sir what should be the distance between barlow lens and eyepiece
Should be 1 to 2 inches... more distance more magnification...but less bright images and clarity
Bro where did you get all the lenses in the box from
collected from old binacular
Sir from where did you buy these lens pls let us know
Hi .. these lenses are retrieved from old binaculars
You can purchase it from Amazon
@@creativeamol link?
@@chinmay6762 www.amazon.in/dp/B09KCNRP9B/ref=cm_sw_r_apan_glt_i_13S6D76DXX0FSFPZ7H6S
What is the focal length of that lens?
Approximately 50mm
@@creativeamol how long is total pipe used
80mm from lens to eyepiece holder
Total length is 100mm
@@creativeamol ok thanku
Pipe calculation toh bata dete
Longer distance between eyepiece and Barlow lens more magnification but more chromatic and spherical abrasion
No technical details are given
Only the wastage of time
what kind of details you want??