Don:
The time allowed for using AF+MF with native lenses is short, as I
remember (don't use it). The discussion below was meant to relate to
using magnify with MF, not AF, lenses, where there's no time constraint.
Martin
On 11/07/2016 1:30 PM, Don Holbrook wrote:
Martin, the EM-1 also works as you explain, except the rear dial changes the X and
the camera defaults to mode2. I use the fn2 for magnify & the preview button
for peaking. With a m4/3 lens, you only have 2 sec to touch the focus ring and
turn the rear dial. If there is another way, I haven't found it.
----- Original Message -----From: Martin Walters <mwalters@xxxxxxxxxx>To: Olympus
Camera Discussion <olympus@xxxxxxxxxxxxxxxxx>Sent: Mon, 11 Jul 2016 16:20:38 -0000
(UTC)Subject: Re: [OM] E-M1 MF magnification and focus peaking for Joel: was: Re: Sedge
butterflies -
Chuck:In order for the IBIS to work in magnified view with MF lenses you need
to do the following (mine is set up this way, I checked):
enable manual magnified view function
* allocate Fn2 button to magnified view * by default this is already set to
“MultiFunction” and thus by holding it down you can set it to
Magnified View functionality, alternatively, set the button to Magnify via the menu
system as for other buttons. * the default behaviour is that when you touch the shutter
button to activate IS as above, you are automatically exited from magnified view mode -
exactly what we don't want. o to enable concurrent activation of IS and legacy lens
magnified view, we need to set one more menu item: + *set LV Close Up Mode to mode 2
(this is under Custom Menu, Disp/PC)*
This excerpt comes from:
http://www.ayton.id.au/wiki/doku.php?id=photo:olympusem5_fourthirds
Martin
On 11/07/2016 12:06 PM, Martin Walters wrote:> Chuck:> I have found that I can focus up to 150mm MF lenses (250mm or so with > care) quite easily in daylight thanks to the IBIS (set to half press > on my camera) that steadies the image sufficiently. Yes, the EVF gets > a bit noisy in low light, but I find that it's still clear enough to > be useful. These days the only MF lens I use in low light is the 7.5mm > FE.>> I also agree that aperture priority is the way to go with MF lenses. > Changing the aperture and exposure compensation can be used if > necessary to keep either ISO or shutter speed in check. Operates much > like my OM-2n (finally, on topic), though with added bells and whistles.>> Martin>>> On 11/07/2016 8:48 AM, Chuck Norcutt wrote:>> Thanks to Martin's comments I now realize that I didn't differentiate >> magnify as an AF function related to the focus ring from the >> functions that can be assigned to various buttons (button functions >> in OM-D parlance).>>>> As it
tu
rns out, both magnify and focus peaking can be assigned to >> buttons which makes their operation available whether using native AF >> lenses or adapted MF lenses. I have now assigned the 2X converter >> (for a 2X view) to the button normally used for automatic white >> balance (because it's useless for raw shooting). I've also assigned >> the Fn1 button to magnify and the Fn2 button to focus peaking.>>>> When you press the magnify button the first time it displays the >> focus point rectangle which is movable. You move the focus point >> where you want the image magnified and a second press gives you a 10X >> view of that area. Pressing the focus peaking button then adds focus >> peaking to the display.>>>> Holding the camera still to focus at 10X using a 100mm equivalent >> lens can be a challenge without a tripod. But I did manage to do it >> in the weak morning light in my office while focusing on the AT&T >> logo on my phone about 3 feet away (black on gray). A breeze at >>
f/1
.4. More difficult but doable at f/16. The screen brightness is >> maintained at f/16 but the screen brightness has to be boosted so >> much that there's a lot of
competing digital noise in the display. >> At f/16 and low light you'll have to be satisfied with 10X >> magnification. If you turn on focus peaking the digital noise
causes >> the focus peaking display to go bonkers.>>>> I would strongly suggest using aperture preferred mode with exposure >> compensation over manual mode
when using adapted MF lenses. When in >> manual mode, if the shutter speed is more than 3 stops down from >> correct exposure it's easy to be fooled (by the histogram)
that the >> exposure is OK when it's not. Aperture preferred is much easier >> anyhow as there is no searching for the correct shutter speed. The >> histogram
clearly responds to the aperture ring and the exposure >> compensation dial (shutter speed) clearly reads over/under exposure >> as you would expect.>>>>
Thanks to Joel for the que
sti
ons that caused me to pursue this and to >> Martin for making me realize the difference between the automatic >> operation of magnify with the focus ring and the manual control of >> both magnify and focus peaking using button functions that work
>> whether using AF lenses or adapted MF lenses.>>>> Chuck Norcutt>>>>>> On 7/10/2016 9:44 PM, Martin Walters wrote:>>> Chuck:>>> With respect to 'If anyone knows how to turn on magnification or focus>>>
peaking with an MF lens I'd like to hear about it.' : The EM-5 has a>>> magnify command (which can be programmed to one of the buttons) which>>> will magnify the view when using MF lenses. Different from the AF+MF>>> setting when you touch the
focus ring of an AF lens. I assume your EM-1>>> offers the same magnify command. The EM-5 doesn't have focus >>> peaking, so>>> the magnify command is the only way to go for MF with legacy lenses.>>>>>>
Martin>>>>>>>>> On 10/07/2016 8:59 PM, Chuck Norcutt wrote:>>>> Yes, manual focus all the way wi
th
an OM Zuiko 50/1.4. Yes, it's easy>>>> to focus an OM Zuiko at f/16 in sun or subdued indoor day light. But>>>> f/16 doesn't work in a dark hallway. As I said even the camera's>>>> autofocus had difficulty there even shooting at f/6.3.>>>>>>>> No, there is no "focus confirm" as on your DSLR adapter. The E-M1>>>> employs magnification and focus peaking for MF focus assistance but,>>>> AFAIK, it only works with AF lenses when in MF mode since turning it>>>> on is controlled by the MF ring on the AF lens. You can, however,>>>> turn on the 2X digital converter for a 2X display. Just remember to>>>> turn it off again before you take the shot or you'll get the 2X shot.>>>>>>>> If anyone knows how to turn on magnification or focus peaking with an>>>> MF lens I'd like to hear about it.>>>>>>>> When reviewing images already taken the rear dial can increase>>>> magnification up to 14X. It would be nice to have that feature work>>>> while taking images.>>>>>>>> Chuck Norcutt>>>>>>>>>>>> On
7/1
0/2016 5:45 PM, DZDub wrote:>>>>> On Sun, Jul 10, 2016 at 11:39 AM, Chuck Norcutt <>>>>> chucknorcutt@xxxxxxxxxxxxxxxx> wrote:>>>>>>>>>>> Yes, you can focus at f/16. I just tried it outdoors in bright >>>>>> sun and>>>>>> various places in the subdued light in the house. Then I pointed it>>>>>> down>>>>>> the dark hallway going out to the garage. In the dark hallway
I>>>>>> could see>>>>>> objects at f/16 but not well enough to focus until I opened to f/8>>>>>> although>>>>>> f/5.6 made focusing easier. Note that the camera was set at ISO 200>>>>>> and I>>>>>> didn't attempt to change that.>>>>>>>>>>>> To give you an idea of the brightness ranges involved I fitted the>>>>>> m.Zuiko>>>>>> 12-50 so I'd have 50mm
available to go with the Zuiko 50/1.4 I used>>>>>> for the>>>>>> MF lens.>>>>>>>>>>>> The outdoors shot was 1/320 at f/8 with -0.7 exp. comp. The indoors>>>>>> subdued light shot was 2" at f/5.6 with -0.7 exp. comp. The shot>>>>>> down the>>>>>> dark hallway was 8" at f/6.3
wi
th no exp. comp. f/6.3 is wide open>>>>>> at 50mm>>>>>> on the m.Zuiko 12-50. The camera had great difficulty focusing on>>>>>> the edge>>>>>> of a throw rug near the exit door. It took it several seconds to>>>>>> lock in>>>>>> and easily lost it. At f/6.3 on the 50/1.4 I think I could have>>>>>> beaten the>>>>>> camera and could have
gotten an easier and faster shot by opening to>>>>>> f/1.4.>>>>>> Keep those old, fast Zuikos. They are still quite usable on an OM-D>>>>>> body.>>>>>>>>>>>>>>>> I would be less concerned about how easily you can focus a Zuiko at>>>>> f11 or>>>>> f16 than whether it could be done at all. I am assuming manual focus>>>>>
all>>>>> the way. Is there some sort of focus confirm with the adapter you >>>>> use?>>>>> (Not super critical for me, but nice to have.)>>>>>>>>>> Thanks,>>>>> Joel W.>>>>>>>>>
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