IR focus register marks
Posted 26/07/2018 - 18:27
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Can't see why not - the sensor is still in the same place as the film used to be i.e. the focal plane.
K3iii, K3ii, K-5, K-x, DA150-450mm, DA16-85WR, DA16-45, DA18-55WR, DA18-135WR, DA35 F2.4, M100mm F4 Macro, DA55-300mm, FA50mm 1.4, AF360 Flash, AF540 Flash
Posted 26/07/2018 - 18:31
Link
As Tigershoot reasoned, they work just the same, but for cameras with live-view thats generally a better option.
I used the IR marks when shoot IR with my k100d.
I used the IR marks when shoot IR with my k100d.
Mike
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Pentax:K5ii, K7, K100D, DA18-55, DA10-17, DA55-300, DA50-200, F100-300, F50, DA35 AL, 4* M50, 2* M135, Helicoid extension, Tak 300 f4 (& 6 film bodies)
3rd Party: Bigmos (Sigma 150-500mm OS HSM),2* 28mm, 100mm macro, 28-200 zoom, 35-80 zoom, 80-200 zoom, 80-210 zoom, 300mm M42, 600 mirror, 1000-4000 scope, 50mm M42, enlarger lenses, Sony & micro 4/3 cameras with various PK mounts, Zenit E...
Far to many tele-converters, adapters, project parts & extension tubes etc.
.[size=11:].Flickr• WPF• Panoramio
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Pentax:K5ii, K7, K100D, DA18-55, DA10-17, DA55-300, DA50-200, F100-300, F50, DA35 AL, 4* M50, 2* M135, Helicoid extension, Tak 300 f4 (& 6 film bodies)
3rd Party: Bigmos (Sigma 150-500mm OS HSM),2* 28mm, 100mm macro, 28-200 zoom, 35-80 zoom, 80-200 zoom, 80-210 zoom, 300mm M42, 600 mirror, 1000-4000 scope, 50mm M42, enlarger lenses, Sony & micro 4/3 cameras with various PK mounts, Zenit E...
Far to many tele-converters, adapters, project parts & extension tubes etc.
.[size=11:].Flickr• WPF• Panoramio
Posted 26/07/2018 - 19:08
Link
Thanks, Gavin & Mike.
In live view, with the R72 filter on, it's too dark to focus, surely?
Isn't it?
Roger.
In live view, with the R72 filter on, it's too dark to focus, surely?
Isn't it?
Roger.
The more I look, the more there is to see!
Posted 26/07/2018 - 19:19
Link
coker wrote:
Thanks, Gavin & Mike.
In live view, with the R72 filter on, it's too dark to focus, surely?
Isn't it?
Roger.
Thanks, Gavin & Mike.
In live view, with the R72 filter on, it's too dark to focus, surely?
Isn't it?
Roger.
Not with my µ4/3 bodies even the unmodified ones
Mike
.
Pentax:K5ii, K7, K100D, DA18-55, DA10-17, DA55-300, DA50-200, F100-300, F50, DA35 AL, 4* M50, 2* M135, Helicoid extension, Tak 300 f4 (& 6 film bodies)
3rd Party: Bigmos (Sigma 150-500mm OS HSM),2* 28mm, 100mm macro, 28-200 zoom, 35-80 zoom, 80-200 zoom, 80-210 zoom, 300mm M42, 600 mirror, 1000-4000 scope, 50mm M42, enlarger lenses, Sony & micro 4/3 cameras with various PK mounts, Zenit E...
Far to many tele-converters, adapters, project parts & extension tubes etc.
.[size=11:].Flickr• WPF• Panoramio
.
Pentax:K5ii, K7, K100D, DA18-55, DA10-17, DA55-300, DA50-200, F100-300, F50, DA35 AL, 4* M50, 2* M135, Helicoid extension, Tak 300 f4 (& 6 film bodies)
3rd Party: Bigmos (Sigma 150-500mm OS HSM),2* 28mm, 100mm macro, 28-200 zoom, 35-80 zoom, 80-200 zoom, 80-210 zoom, 300mm M42, 600 mirror, 1000-4000 scope, 50mm M42, enlarger lenses, Sony & micro 4/3 cameras with various PK mounts, Zenit E...
Far to many tele-converters, adapters, project parts & extension tubes etc.
.[size=11:].Flickr• WPF• Panoramio
Posted 26/07/2018 - 23:01
Link
tried on my K3ii and you cannot see a thing. the IR point definitely works , tried that out on my Tamron Adptall 35-70 which has a mark for 35mm and one for 70mm. the 35 IR point is 6mm from standard but the 70 is only 1.5 mm, how you sort out distances between i have no idea. Pentax A70-210 has one mark that slopes through the whole zoom range my other lenses for IR are primes, 24, 28, 90.
Posted 26/07/2018 - 23:47
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Back when I had a converted K01 I used the ir points on my m 28mm, f8 and focus points lined up and was good to go no issues at all.
Same when using the r72nm filter.
Same when using the r72nm filter.
I know what i like, If not always why.
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1547 posts
14 years
Wiltshire
E.g., Pentax 200mm f4 m, 50mm f1.7m, Kiron 28mm f2.....?
Thanks,
Roger.