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09/25/2004 04:33:50 AM · #1 |
anyone done this b4? or able to translate this page?
//mulder.nchc.org.tw/ckmax/Camra/DIYFocusingScreen01.htm
Edit: adding more links//www.photonotes.org/articles/split-circle-screen/
Message edited by author 2004-09-25 04:36:04.
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09/25/2004 04:46:22 AM · #2 |
The first camera I purchased around 1983 was a Minolta X370 and it had split circle (split prism) viewfinder. It indeed made it easier to focus manually.
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09/25/2004 09:29:59 AM · #3 |
Oh yeah, I've really missed this feature since I got involved with digital. My X700 had one of these screens (no AF) and it was very easy to tell when subjects were focused properly even at night. I wish Canon and others would bring this back somehow in their AF cameras. Or better yet, give their DSLRs the eye-controlled focusing abilities.
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09/25/2004 10:20:58 PM · #4 |
babelfish can't translate it either
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09/25/2004 10:31:43 PM · #5 |
| Jeeez, my Nikon F3 had interchangable screens. It was a piece of cake to swap the standard screen for one of a wide variety of replacement screens. |
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09/25/2004 10:43:56 PM · #6 |
Dumb question alert:
Do D-SLR's not have manual focus? I'm waiting for my digital rebel and I just read something like that in Photo Life...I'm confused, I thought it would just work like my film SLR.
Sorry for the silliness, but I'm a little perplexed! |
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09/25/2004 10:44:53 PM · #7 |
yes, but apparently DLSR has smaller screens, so you have to cut them up
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09/25/2004 10:50:08 PM · #8 |
Originally posted by zerocusa:
yes, but apparently DLSR has smaller screens, so you have to cut them up |
huh? |
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09/25/2004 10:57:35 PM · #9 |
Originally posted by thatcloudthere:
Originally posted by zerocusa:
yes, but apparently DLSR has smaller screens, so you have to cut them up |
huh? |
Sorry, i was actually replying to Spazmo99's post
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09/25/2004 11:10:27 PM · #10 |
Okay, everything below makes sense now...The old Minolta I used in highschool had the split prism viewfinder. And of course my digital rebel can manually focus.
The only thing that confuses me now is this statement in Photo Life magazine, in response to a reader who was asking for information about differences between digital and film cameras. Here's the quote:
Do note, however, that digital SLR cameras are not compatible with manual focus lenses. You would need to use Nikon AF mount lenses with a Nikon or Kodak digital SLR, Canon EF mount lenses with a Canon digital SLR, and so on.
What's he saying? The old film camera lenses don't work on digital SLR's? I'm confused. |
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09/25/2004 11:16:07 PM · #11 |
i heard some by using manual focus lens, on most dlsr except the high end ones, you will lose light metering.
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09/25/2004 11:37:46 PM · #12 |
Originally posted by zerocusa:
i heard some by using manual focus lens, on most dlsr except the high end ones, you will lose light metering. |
Do you mean the old lenses? The kit lens for the rebel can be manually focused, can it not?
Message edited by author 2004-09-25 23:40:19. |
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09/25/2004 11:41:17 PM · #13 |
Yeah, the kit lens works for sure.
The thing that won't work is using old, non-CPU lenses with as DSLR. At least, you'll lose all your metering capability, which really sucks.
For some strange reason that I don't understand, the DSLR needs to have the lens electronics do something to make the metering work. I would think that the camera could just measure the light coming and and boom, there's the exposure. How hard is that?!
Maybe Canon and Nikon are excluding the older lenses just so we'll give them $$$$$$ (yeah, that many $) for new glass. Damn, lenses are pricey. |
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09/25/2004 11:59:04 PM · #14 |
I think Canon labels them FD lenses. Only EF lenses work with the new cameras unless you get an adapter.
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09/26/2004 12:09:48 AM · #15 |
Thanks EddyG for that infomative PM.
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09/26/2004 08:17:37 AM · #16 |
I own a 1960s Argus C3 rangefinder camera that has this. It took me a little while to realize when things where in focus since I had never seen anything like it, but it is pretty easy now.
June
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09/26/2004 10:24:34 AM · #17 |
Originally posted by skylen:
Yeah, the kit lens works for sure.
The thing that won't work is using old, non-CPU lenses with as DSLR. At least, you'll lose all your metering capability, which really sucks.
For some strange reason that I don't understand, the DSLR needs to have the lens electronics do something to make the metering work. I would think that the camera could just measure the light coming and and boom, there's the exposure. How hard is that?!
Maybe Canon and Nikon are excluding the older lenses just so we'll give them $$$$$$ (yeah, that many $) for new glass. Damn, lenses are pricey. |
I think metering still works. But the camera can't change the aperture, so the automatic modes that depend on this won't work. I don't have any other lenses that fit my Rebel, but I just removed the lens and put the camera in manual mode. The meter still seems to work.
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09/26/2004 11:30:04 AM · #18 |
| On Canon DSLRs, metering still works in manual and in aperture preferred (Av) modes. I'm not sure how other makes work, or don't. |
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11/08/2004 03:32:28 PM · #19 |
Originally posted by cpanaioti:
I think Canon labels them FD lenses. Only EF lenses work with the new cameras unless you get an adapter. |
Nothing new here. It's the same for Canon auto focus film cameras too.
My Canon EOS Elan 7E and Canon EOS 10D use the same lenses, no problem. All my lenses have a switch on them to go from manual to auto focus. It's all very simple. I have no idea how Nikon gear works. |
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11/19/2004 05:12:23 AM · #20 |
Babel Fish Translation:
The basically burnt screen, also uses in 10D, D60, D30 a series of APS size sensor DSLR, in the hand the material shows, the burnt screen size is one, all is 29*17.25mm. Uses the tool includes: sub-, granulated substance (thick 80, 240 or each one), the ruler (is best has finer You?chi), (does uses), Bai?, the bit, the work table, Material: the burnt screen (CanonEOS uses and so on with either NikonFM2 or Contax167MT with the FU series or Milnota) Other tools: The clear tool and , like blows the ball, wipes , the cotton fabric, lives and so on beginning hand
1. first measures the burnt screen size, calculated one next four cuts away how many, , can remain do not have little to calculate, in order to avoid cuts, rubs too many law to the period of five days original. With the ruler and on the burnt screen all around, the attention blows to the center , must tests in , the counter- tangent, is big one , may rub is.
2. arranges Jiao Pinggu on the work table, first cuts a road junction with the ruler with the bit on the burnt screen, does not use too deeply, must be careful cuts the hand, then uses the sub- many partial booklets . After
3. cuts, with measures the size, then rubs with the granulated substance beginning, rubs the period of five days to have to pay attention, do not have to rub, to trace the surface, certainly must take four , then wants the average to rub, takes the measurement size, You?chi very was easy to use.
4. 1 rubs must pay attention to the central position, may use Bai?? a size square, with compares the crack to like whether in center After
5. rubbed with blew the ball to blow down the ash
6. completed the new burnt screen
7. receives must tear off the original burnt screen, first tears off , instead sets in under , found the position meets the burnt screen fixed piece
8. uses sub- to put on the piece central hole, downward presses (Jiao Ping, the CMOS direction) takes out the piece, must be careful bumps into the burnt screen
9. careful with sub- takes down original Jiao Ping? to have uses the piece
10. Finally goes to new Jiao Pingfang, the surface dynasty water chestnut , does the direction, the fixed piece also returns, completed!
PS1. the inferior institute uses the burnt screen, is B which CanonF-1 uses type burnt screen, looked material with thickness all original has the difference, , looks like does not come in handy, the law is burnt, changes highly also the law solution , pushes is material thickness , possibly only has the burnt screen could use ~
PS2. Ha-ha ~ day , looked is Jiao Pingtai thick, creates in the focal-plane to move (toward water chestnut direction), therefore a evening the principle, has all around rubbed an entire circle 0.1mm thickness in the burnt screen, to successful burnt promotes Jiao Ping face on 0.1mm, was allowed to be burnt! Constructs the person which must change to pay attention arrives the burnt screen thickness, at present knew, CanonF-1 B type, the ContaxFW series is all thicker than, needs to revise. Heavy is, cracks the picture to be really better than ! Contax compared to Canon original good, fiercely pushes the ContaxFU series, after has fixed Canon original must be brighter than, ! By Max, Feb 13, 2,004
************
Lots of untranslated words...breaks up the flow of the text. For what it's worth.
Good luck. |
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11/19/2004 07:12:01 AM · #21 |
Originally posted by thatcloudthere:
The only thing that confuses me now is this statement in Photo Life magazine, in response to a reader who was asking for information about differences between digital and film cameras. Here's the quote:
Do note, however, that digital SLR cameras are not compatible with manual focus lenses. You would need to use Nikon AF mount lenses with a Nikon or Kodak digital SLR, Canon EF mount lenses with a Canon digital SLR, and so on.
What's he saying? The old film camera lenses don't work on digital SLR's? I'm confused. |
You can work around any metering issues by going to manual mode and setting aperture & shutter speed yourself; and you can work around auto-focus issues by using manual focus mode and focusing the lens by eyesight; but you cannot work around the lens mount. On Canon DSLRs only EF (and on Rebel & 20D EF-s) lenses will physically fit onto the camera's lens mount. There are third party adapters available (on ebay for about $70) but I don't think they work too well. If they did we would hear a lot more about them.
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11/19/2004 08:56:32 AM · #22 |
Originally posted by dr rick:
Originally posted by skylen:
Yeah, the kit lens works for sure.
The thing that won't work is using old, non-CPU lenses with as DSLR. At least, you'll lose all your metering capability, which really sucks.
For some strange reason that I don't understand, the DSLR needs to have the lens electronics do something to make the metering work. I would think that the camera could just measure the light coming and and boom, there's the exposure. How hard is that?!
Maybe Canon and Nikon are excluding the older lenses just so we'll give them $$$$$$ (yeah, that many $) for new glass. Damn, lenses are pricey. |
I think metering still works. But the camera can't change the aperture, so the automatic modes that depend on this won't work. I don't have any other lenses that fit my Rebel, but I just removed the lens and put the camera in manual mode. The meter still seems to work. |
Weird! My D70 manual says that if you use a non-CPU lens, you get no metering at all. I wonder if Canon has a better metering method than Nikon here? Better meaning older manual focus lenses are actually usable. |
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11/19/2004 09:10:30 AM · #23 |
I hav a Sigma lens which I originally bought for use with my non digital EOS 500, (many moons ago).
When I got my 300D it wouldn't work, (to cut a long story short). Even though its an auto focus lens and has the EF mount. I returned it to Sigma who "fixed" it free of charge.
The problem was that the camera couldn't control the aperture when the shutter release was pressed. I confirmed the prblem by putting a small piece of tape over all the electronic contacts on the lens and then putting it on the camera. It worked fine, except that I had no aperture control! A bit of a drawback....
Spelling!!!
Message edited by author 2004-11-19 09:11:03.
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11/19/2004 09:38:16 AM · #24 |
Originally posted by dr rick:
Originally posted by skylen:
Yeah, the kit lens works for sure.
The thing that won't work is using old, non-CPU lenses with as DSLR. At least, you'll lose all your metering capability, which really sucks.
For some strange reason that I don't understand, the DSLR needs to have the lens electronics do something to make the metering work. I would think that the camera could just measure the light coming and and boom, there's the exposure. How hard is that?!
Maybe Canon and Nikon are excluding the older lenses just so we'll give them $$$$$$ (yeah, that many $) for new glass. Damn, lenses are pricey. |
I think metering still works. But the camera can't change the aperture, so the automatic modes that depend on this won't work. I don't have any other lenses that fit my Rebel, but I just removed the lens and put the camera in manual mode. The meter still seems to work. |
I can attach my 10D to my telescope with a T mount adapter and still use Aperture priority or Manual, I just can't use any auto metering function that requires the camera to control the aperture. No big deal. There are alos adapters that will let you use the older FD mount lenses or screw mount lenses with similar functionality.
I do know that when Canon re-designed their lens mount (going from FD to EF), they made the EF mount larger in diameter so they could more easily design faster lenses. Their new cameras are noty backwards compatible with older lenses unless an adapter is used. Nikon took the other approach, by not re-designing the mechanical interface of their lens mount from the ground up, they went for the backwards compatibility and ensured that any Nikkor lens from about 1957 or so forward will fit on even the newest camera without an adapter and also that the new lenses CAN be used on the oldest Nikon cameras.
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11/19/2004 10:28:06 AM · #25 |
Interesting discussion.
I read an article not long ago (don't recall where) where someone outlined how they managed to get a split prism screen into a rebel. It was all very interesting right up to the poiint where they started talking about how much dimmer the viewfinder was ( due to light loss) as a result. So they had a split prism finder, but could only use it in good light! I'm sure this hack has similar drawbacks.
As to the old lenses issue... heck folks, with an adapter you can put a whole lot of different lenses in front of a rebel. You just have to put up with manual focus and usually manual meterings as well. But Canon is one of the easiest systems to get adapters for and with the right adapters you can mount many old style manual mounts and still get infinity focus.
Check this if your interested.
//photonotes.org/articles/eos-manual-lenses
I know all this crud because I have been using M42 lenses (almost exclusively) on Sigma for over a year, and recently started using them on a rebel. IF you can put up with drawbacks, the bonus is exceptional image quality, very cheaply.
Message edited by author 2004-11-19 10:30:51. |
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