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Finding a manual focus adapter for a fixed focus phone camera?
Finding a manual focus adapter for a fixed focus phone camera?
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Old 26th November 2017, 12:40 PM   #21
AndrewT is offline AndrewT  Scotland
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is it in focus at infinity?
is it in focus at any distance?
is it a crap lens that will never give sharp pictures?
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Old 29th November 2017, 08:51 PM   #22
realflow100 is offline realflow100  United States
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its in focus completely at any distance beyond about 2 and a half to 3 feet

but anywhere less than that it gets progressively more blurry as you get closer. and a half a foot its downright crap and shameful quality.

I have cleaned the lens furiously until it looks so clean it looks like it was made in a clean-room and fresh off the assembly line
Still not any better anywhere closer than a few feet
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Old 29th November 2017, 08:53 PM   #23
Pano is offline Pano  United States
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Finding a manual focus adapter for a fixed focus phone camera?
Reading glasses. Dollar Store.
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Old 1st December 2017, 04:51 PM   #24
AndrewT is offline AndrewT  Scotland
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Quote:
Originally Posted by realflow100 View Post
its in focus completely at any distance beyond about 2 and a half to 3 feet

but anywhere less than that it gets progressively more blurry as you get closer. and a half a foot its downright crap and shameful quality.

I have cleaned the lens furiously until it looks so clean it looks like it was made in a clean-room and fresh off the assembly line
Still not any better anywhere closer than a few feet
Then use a close up lens.
I gave some examples (post18) of how to calculate the strength of lens you might want to use for your duty.
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Last edited by AndrewT; 1st December 2017 at 04:53 PM.
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Old 3rd December 2017, 04:49 AM   #25
realflow100 is offline realflow100  United States
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if the close up lens can focus the camera between 0 feet and about 3 to 4 feet then ok
but if its only for MACRO a few inches away thats not going to help the problem.
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Old 3rd December 2017, 11:27 AM   #26
AndrewT is offline AndrewT  Scotland
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If you need macro then calculate the dioptres required.
If you need 2feet then calculate that lens required.
You CANNOT get any lens to do 0 feet to 3 feet. No lens designer can ever achieve that range.
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Old 3rd December 2017, 11:11 PM   #27
realflow100 is offline realflow100  United States
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I didnt mean exactly 0 feet!!!! you took my message way too literally
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Old 4th December 2017, 02:33 AM   #28
PRR is offline PRR  United States
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> you took my message way too literally

And you are *ignoring* ours. Reading glasses. Figure what distance you want to focus. The formula/chart has been given in this trhead multiple times. The experiment is cheap. Dollar Tree has readers for $1 (they are optically fine). For zero investment, take your cellfone in the store and try it there. Or look in the couches of your older friends.
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Old 6th December 2017, 05:54 AM   #29
realflow100 is offline realflow100  United States
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Is there no product I could buy specifically for this purpose ANYWHERE?
I just want a manually variable customizeable focus lens that i can adjust on the fly.
preferably something that just clips on and has a knob on the side of the lens that adjust the focus?
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Old 6th December 2017, 08:20 AM   #30
AndrewT is offline AndrewT  Scotland
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No.
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