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Forum: Troubleshooting and Beginner Help 06-26-2013, 01:08 AM  
How to adjust infinity focus on Takumar 35MM 3.5
Posted By bornamachine
Replies: 20
Views: 4,917
probably...
Forum: Post Your Photos! 06-25-2013, 03:32 PM  
Nature All Systems Ready For Takeoff
Posted By bornamachine
Replies: 4
Views: 733
Awesome picture!
Forum: Troubleshooting and Beginner Help 06-25-2013, 03:28 PM  
How to adjust infinity focus on Takumar 35MM 3.5
Posted By bornamachine
Replies: 20
Views: 4,917
I'll allow you once you have personally written a clear and practical guide how to adjust the focus on a takumar along with pictures, until then, sit back, buckle up, and be quite.
Forum: Troubleshooting and Beginner Help 06-24-2013, 11:26 PM  
How to adjust infinity focus on Takumar 35MM 3.5
Posted By bornamachine
Replies: 20
Views: 4,917
I've got the second lens to focus correctly (using the ebay adapter).. now the lens can focus on a far object, then a little past it, so i have achieved infinity focus.
It now takes crystal clear pictures!

I've attached photos how to disassemble the lens.
Basically the rear lens is stationary and is placed at a set distance inside the camera body and does not move, the upper lens moves up and down, the closer the top lens moves to the rear fixed lens the more infinity focus you achieve.
You open the lens up (I used a socket with tape for friction),
undo the 3 screws,
take off the filter ring
, loosen the 3 focus ring screws,
rotate the focus ring to the 0.45 mark,
tighten one screw,
rotate the focus ring towards the infinity mark,
the lens will sink as deep as it can go
once the lens moves as far as it can go in, stop,
loosen the screw again,
set the focus ring on the infinity mark,
and tighten the 3 screws.
Your lens is now sunk in the barrel as deep as it can possibly go, and that is the most infinity focus your lens can achieve. One other thing you can do is try and screw the lens deeper in, unless it is already maxed out. You can also take out the main lens and clean behind it.
Hold the lens
Use 2 flat blade screw drivers in little tiny cut outs in the ring
screw counterclockwise to unscrew (For cleaning)
screw clockwise to screw in (for checking its as deep as it will go, or reassembly)

You have now cleaned the lens and set maximum infinity possible on your lens.
Reassemble in the opposite order.

Why this lens managed to focus and not the last one???

My theory: Takumar made 3 versions of this lens, first being able to reach f22, latter 2 reaching f16, the previous lens I had was a f22 lens and its rear lens protruded beyond the body further then this f16 version, and if you have read in my earlier post that when I unscrewed the rear lens by grasping it with pliers, and it brought the rear lens DEEPER into the body, the infinity focus worsened (Meaning it had to sit LESS DEEP to achieve infinity focus but unable to do due to lens design). You can see from the last picture that the rear lens of this f16 is sitting more flush with the body) Anyyway, that is my logical conclusion why the f16 is able to infinity focus on my K5 and the f22 was not.

Thanks to all for the input. :cool:
Forum: Troubleshooting and Beginner Help 06-24-2013, 12:12 AM  
How to adjust infinity focus on Takumar 35MM 3.5
Posted By bornamachine
Replies: 20
Views: 4,917
Ok, am I the only one who got lost with this reply? Thanks for the reply but the 25foot range was just a guesstimate, also, I will try to post some pics, but i have already gotten rid of the first 35mm takumar and purchased a different one, yet I am experiencing the same problem!!... Could this be a camera problem?...
Forum: Troubleshooting and Beginner Help 06-24-2013, 12:09 AM  
How to adjust infinity focus on Takumar 35MM 3.5
Posted By bornamachine
Replies: 20
Views: 4,917
Thank you! You may be one of the few people that actually read through what I am writing, yes, the threads bottom out and the focus is at MAXIMUM infinity focus that a barrel can provide, and, yes, I do understand that the flange adds a thickness thus moving the lens further from the body and worsening the infinity focus, but as I have mentioned, I held it FLUSH against the body and it still won't focus on far objects. Thank you! I am still trying to figure out what is wrong.... I have also noticed that the infinity focus is as well as I would like on my K mount lenses.... maybe something is wrong with the camera...
Forum: Troubleshooting and Beginner Help 06-22-2013, 05:59 PM  
How to adjust infinity focus on Takumar 35MM 3.5
Posted By bornamachine
Replies: 20
Views: 4,917
The lenses are adjustable, I am trying to figure out how to adjust it. Thank you
Forum: Troubleshooting and Beginner Help 06-22-2013, 05:58 PM  
How to adjust infinity focus on Takumar 35MM 3.5
Posted By bornamachine
Replies: 20
Views: 4,917
Thanks for all the replies, and yes I do understand that the adapter introduces a gap between the camera body and the lens, BUT even when I hold the lens with my hand FLUSH to the body without an adapter, the depth of focus is about 25 feet, and everything beyond that does not focus, so it tells me that even if I was to get a flush type of adapter, I would still not attain infinity focus. This is my 2nd 35mm lens i am trying on the k5 body.
Forum: Troubleshooting and Beginner Help 06-22-2013, 03:35 AM  
How to adjust infinity focus on Takumar 35MM 3.5
Posted By bornamachine
Replies: 20
Views: 4,917
Additional information:

I am using a cheaper adapter off of ebay (Quality made actually) but it does introduce that tiny, idk 1/32" gap between the camera and the lens vs an original pentax adapter that fits inside the body, but please note that all my other manual lenses focus fine on it, and beside that point, even when I hold the takumar 35mm lens against the body without anything in place, so there is NO GAP between the body and the lens (Just holding it close by hand) It still does not reach inifinity focus.. thank you (to whoever helps me;) ) thx all
Forum: Troubleshooting and Beginner Help 06-22-2013, 03:27 AM  
How to adjust infinity focus on Takumar 35MM 3.5
Posted By bornamachine
Replies: 20
Views: 4,917
Hello,
Could someone please describe clearly to me how to adjust infinity focus?

My takumar 35mm 3.5 only has a depth of about 5 feet or so and thats it. I have taken off the front name plate ring, then the three little screws that hold the thread ring for the filter. Then you reach the 3 adjustment screws, when you loosen those, you can now rotate the focus ring and lock it place, say, instead of "infinity to .45m" you set it on ".05-45m" (estimate numbers dont have the lens in front of me) but what all that does is limit how much the lens can go up and down now! I don't understand how that adjusts anything???....
So... I tried to get the rear little lens to unscrew and come off the body a bit deeper into the body of the camera when mounted to see the effect (as I have fixed infinity focus on a 50mm 1.4 lens like that). When I did that what happend is that I increased the distance between the small rear lens and the large front lens, the effect it gave me was WORSE infinity focus, so I understand that the lenses have to be closer together to get to infinity focus, I now see that the front bigger lens can be screwed out, I try it and and it starts to screw out, I screw it in deeper instead to bring it closer, and it goes a bit deeper then it was originally. The depth of focus becomes about twice as good at that point but the lenses still need to be closer.. and thats where I am stumped...

Could somebody please explain to me in lay mans term on how the infinity adjustments works because I am feeling real slow right now, read a couple of breezy explained blogs on how to adjust a takumark 50mm i believe, and everyone seems to be able to adjust the 35mm accordingly except for me!
Help!!!! :)
Forum: Pentax K-5 06-19-2013, 05:19 AM  
Image green in dark room?...
Posted By bornamachine
Replies: 5
Views: 1,062
Also, I did leave AWB on, as well as all the other preset white balances, and it still remained green
Forum: Pentax K-5 06-19-2013, 05:18 AM  
Image green in dark room?...
Posted By bornamachine
Replies: 5
Views: 1,062
Thanks for the input guys, the assist light comes off during the shot that is correct. My guess is that it must be the lighting, the bulbs outside are HID older style that run off of ballasts that hum, so it might be a wavelength the camera sees as green, as the video itself was COMPLETELY green like night vision green yet it was bright to the eye, thanks everyone :)
Forum: Pentax K-5 06-16-2013, 04:13 AM  
Image green in dark room?...
Posted By bornamachine
Replies: 5
Views: 1,062
Hello,
I recently got a k-5. I've become fairly familiar with it but Im no expert!

I tried taking an image in the dark with it and the image is green, any ideas why?
Tried manual and AF lenses and the image is green in both picture and video mode, tried adjusting the WB to no avail, the light in reality is white to the eye, any idea what could be causing this?? Thank you
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