Home

Please support mflenses.com if you need any graphic related work order it from us, click on above banner to order!
SearchSearch MemberlistMemberlist RegisterRegister ProfileProfile Log in to check your private messagesLog in to check your private messages Log inLog in

Solution for Canon overexposure with MF lenses?
Post new topic   Reply to topic
Home   Digital SLR Cameras
View previous topic :: View next topic  


PostPosted: Wed Sep 22, 2010 9:23 pm    Post subject: Reply with quote
The screens also arrive with a storage case and include a small handling tool that also serves to unlatch the screen in the camera. Simple, easy, less than a minute to exchange screens, although a steady hand helps. The fast screen does go darker rapidly as aperture is reduced; not a problem in bright conditions, somewhat inconvenient for macro photography dof checking I find. Camera has settings for which screen is in use, that adjusts metering for brighter screen characteristics.


PostPosted: Wed Sep 22, 2010 10:31 pm    Post subject: Reply with quote
visualopsins wrote:
The screens also arrive with a storage case and include a small handling tool that also serves to unlatch the screen in the camera. Simple, easy, less than a minute to exchange screens, although a steady hand helps. The fast screen does go darker rapidly as aperture is reduced; not a problem in bright conditions, somewhat inconvenient for macro photography dof checking I find. Camera has settings for which screen is in use, that adjusts metering for brighter screen characteristics.


Thank you. I saw an illuminating video of the process.

It is interesting however, that in Canon's way of thinking, this kind of information has no place in the manual...
Too bad! I wish I knew earlier that I can CLEAN the screen myself so easily...


PostPosted: Thu Sep 23, 2010 2:11 am    Post subject: Reply with quote
visualopsins wrote:
The screens also arrive with a storage case and include a small handling tool that also serves to unlatch the screen in the camera. Simple, easy, less than a minute to exchange screens, although a steady hand helps. The fast screen does go darker rapidly as aperture is reduced; not a problem in bright conditions, somewhat inconvenient for macro photography dof checking I find. Camera has settings for which screen is in use, that adjusts metering for brighter screen characteristics.


Would you say that, in good light, at f/5.6 the screen is still bright enough to focus without having to use Live View?


PostPosted: Thu Sep 23, 2010 2:58 am    Post subject: Reply with quote
cooltouch wrote:
visualopsins wrote:
The screens also arrive with a storage case and include a small handling tool that also serves to unlatch the screen in the camera. Simple, easy, less than a minute to exchange screens, although a steady hand helps. The fast screen does go darker rapidly as aperture is reduced; not a problem in bright conditions, somewhat inconvenient for macro photography dof checking I find. Camera has settings for which screen is in use, that adjusts metering for brighter screen characteristics.


Would you say that, in good light, at f/5.6 the screen is still bright enough to focus without having to use Live View?


Trick question? Laughing

For focus confirmation with manual lens stopped down to f/5.6? Dunno about that...I removed the AF confirm chip long ago, much preferring the more accurate (imho) WYSIWYG approach. Very Happy

I focus wide open, then stop down to check dof. F/5.6? No problem even at f/8 in good light. F/11, f/16, though, I find my eyes stopped down too far to see darker viewfinder clearly enough when checking dof. My eyes adjust rapidly, but the wait can be problematic with some subjects that won't wait with me. Laughing

No live view on 5D1...


PostPosted: Thu Sep 23, 2010 4:44 am    Post subject: Reply with quote
Not a trick question. Okay I think you answered my question, but let me be more specific, just to be sure. If you're using a telephoto lens, say a 400mm or 500mm f/5.6 with no focus confirm chip, and are focusing with it wide open, do you think this focusing screen will work adequately? How about when using one of the ubiquitous 500mm f/8 mirrors?


PostPosted: Thu Sep 23, 2010 11:20 am    Post subject: Reply with quote
If I get a chance (i.e. weather permitting) I will try a long lens on my 5D this weekend...something like a 350/5.6 or a 400/6.3. I tend not to use my 5D for this sort of stuff though, as crop gives better reach Wink


PostPosted: Thu Sep 23, 2010 2:05 pm    Post subject: Reply with quote
visualopsins wrote:
... Camera has settings for which screen is in use, that adjusts metering for brighter screen characteristics.

But only with original Canon screens.

cooltouch wrote:
Would you say that, in good light, at f/5.6 the screen is still bright enough to focus without having to use Live View?

The thing the "good light". In good light, yes, you can focus at f/8 with the EE-S. In dim light, no way. But who shoots at f/8 in dim light?
If you shoot nightshots on a tripod, use f/16 and hyperfocal distance. Wink


PostPosted: Thu Sep 23, 2010 2:27 pm    Post subject: Reply with quote
LucisPictor wrote:
But who shoots at f/8 in dim light?
If you shoot nightshots on a tripod, use f/16 and hyperfocal distance. Wink


Oh, I don't know -- astrophotographers? Hyperfocal distance doesn't really work with long teles and astrophotography, since most focus past infinity and even at the Moon's distance, DOF is often quite narrow.

I'll admit though -- for photographing the Moon with my cheezy crop-body EOS, I always use Live View. The viewfinder is just about worthless for determining exact focus.


PostPosted: Thu Sep 23, 2010 2:44 pm    Post subject: Reply with quote
cooltouch wrote:
Not a trick question. Okay I think you answered my question, but let me be more specific, just to be sure. If you're using a telephoto lens, say a 400mm or 500mm f/5.6 with no focus confirm chip, and are focusing with it wide open, do you think this focusing screen will work adequately? How about when using one of the ubiquitous 500mm f/8 mirrors?


No problem in a pinch, but for lenses slower than f/3.5 I switch focus screen to original; takes less than a minute. In fact I have used Ee-S fast screen with Spiratone Mini-tel 500/8 several times because someone forgot to switch screens before hiking to remote spots. Laughing Now I carry both screens. Wink The fast screen goes darker rapidly from f/1.4 to f/5.6 but does not seem to get proportionally darker as rapidly from f/5.6 to f/32; I'll confirm that later as now I am curious...


PostPosted: Wed Sep 29, 2010 2:58 pm    Post subject: Reply with quote
My Eg-s focusing screen arrived today.
What a difference!!
I knew something was wrong when the viewfinder brightness changed only a bit between 1.4 and 4.
But I never realized I should have proper bokeh in my viewfinder!
Now I have Smile

Thank you for this thread guys.


PostPosted: Wed Sep 29, 2010 4:42 pm    Post subject: Reply with quote
Good, Nikos!


PostPosted: Tue Oct 05, 2010 7:03 am    Post subject: Reply with quote
After reading this thread it's really pity that there isn't any extra focusing screen available for the Canon 7D Crying or Very sad


PostPosted: Thu Oct 07, 2010 8:26 pm    Post subject: Reply with quote
hemmo wrote:
After reading this thread it's really pity that there isn't any extra focusing screen available for the Canon 7D Crying or Very sad


Well, Canon may not make one, but aftermarket ones are available:

Click here to see on Ebay

Click here to see on Ebay


PostPosted: Fri Oct 08, 2010 10:48 am    Post subject: Reply with quote
Great news! Thank you very much Michael!


PostPosted: Wed Oct 20, 2010 7:05 am    Post subject: Reply with quote
For Canon 7D users:

I bought "Dual 45° Split Image Focus Focusing Screen fr Canon 7D" (from eBay 15.99USD)

Now when I looked the installing instructions, it seems that with 7D the focusing screen changing isn't as easy as with other Canon models. With 7D you have first take one part of before you can actually do the focusing screen changing.

Here's pictures about install procedure with 7D
http://www.focusingscreen.com/work/7den.htm

but with other Canon models it's seems to be very quick and simple
http://www.youtube.com/watch?v=Hf-4G4wGe-Y

I have to go and buy one small screwdriver for this new focusing screen testing, but looks that with 7D changing that screen aint gonna be as quick 'on the road job' as it's with other Canon models. Sad
Post new topic   Reply to topic
Home   Digital SLR Cameras
Goto page Previous  1, 2, 3
Page 3 of 3