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Photo Forum / Digital Photography / DSLR Cameras / August 2005Pentax DS
Can Pentax DS use manual K-mount lens? Would it have metering functionality? Thanks. Yes it will, works really nicely, any lens that you can physically fit on the camera will meter properly, some you will have to press a button to take the reading, any with a "A" setting should auto meter.. > Can Pentax DS use manual K-mount lens? Would it have metering > functionality? Thanks. > Yes it will, works really nicely, any lens that you can physically fit on > the camera will meter properly, some you will have to press a button to take > the reading, any with a "A" setting should auto meter.. > >>Can Pentax DS use manual K-mount lens? Would it have metering >>functionality? Thanks. Thanx. They are compatible lenses, not Pentax. One fit physically but has no "A" setting. One has "A" setting but doesn't go fit in the camera mount. :( >> Yes it will, works really nicely, any lens that you can physically fit on >> the camera will meter properly, some you will have to press a button to take [quoted text clipped - 6 lines] >has no "A" setting. One has "A" setting but doesn't go fit in the camera >mount. :( Be very, very careful with some of those "compatible" lenses; make sure they are really K-mount compatible, not Pentax/Ricoh K/KP mount. If you mount a KP-mount lens on a Pentax AF body it can get jammed on. >>>Yes it will, works really nicely, any lens that you can physically fit on >>>the camera will meter properly, some you will have to press a button to take [quoted text clipped - 10 lines] > they are really K-mount compatible, not Pentax/Ricoh K/KP mount. If you > mount a KP-mount lens on a Pentax AF body it can get jammed on. It says P-KA. It works in the K-1000 but not the Ds. I have a nice 35-70mm that I had to remove part of the internal shrouding to get it to fit on my MZ-50 and Ds, once it went on it become one of my favourite lenses. >>>>Yes it will, works really nicely, any lens that you can physically fit >>>>on the camera will meter properly, some you will have to press a button [quoted text clipped - 12 lines] > > It says P-KA. It works in the K-1000 but not the Ds. >>>>Yes it will, works really nicely, any lens that you can physically fit on >>>>the camera will meter properly, some you will have to press a button to take [quoted text clipped - 12 lines] > >It says P-KA. It works in the K-1000 but not the Ds. You may find some non-Pentax lenses don't mount on the DS because the metal tab that guards the aperture actuating lever is too deep and fouls the body. You can often remove this (or modify it) and the lens will then work. I've never heard of any Pentax lens being incompatible for any reason though.  SignatureRegards John Bean >>>>>Yes it will, works really nicely, any lens that you can physically fit >>>>>on [quoted text clipped - 22 lines] > I've never heard of any Pentax lens being incompatible for > any reason though. I did that to one lens, see above. > Can Pentax DS use manual K-mount lens? Would it have metering > functionality? Thanks. Yes and yes. Some details here: <http://www.mile23.com/node/26> >>Can Pentax DS use manual K-mount lens? Would it have metering >>functionality? Thanks. > > Yes and yes. Some details here: > > <http://www.mile23.com/node/26> Thanks for the link. I got the lens without "A" setting work. Push the AE-L button and the camera sets the shutter speed. No exposure reading though. I think this is how it works. At least it can meter. > >>Can Pentax DS use manual K-mount lens? Would it have metering > >>functionality? Thanks. [quoted text clipped - 6 lines] > AE-L button and the camera sets the shutter speed. No exposure reading > though. What do you mean by 'exposure reading?' You set the aperture on the lens, the camera set the shutter speed which is clearly visible in the finder. To find out what shutter speed to use at a different aperture, change the aperture and press AE-L. > I think this is how it works. At least it can meter. Yes, in spot or center-weight mode. It can also tell you when the subject is in focus. >> >>Can Pentax DS use manual K-mount lens? Would it have metering >> >>functionality? Thanks. [quoted text clipped - 16 lines] > Yes, in spot or center-weight mode. It can also tell you when the > subject is in focus. This is a really great camera. >>>>Can Pentax DS use manual K-mount lens? Would it have metering >>>>functionality? Thanks. [quoted text clipped - 16 lines] > Yes, in spot or center-weight mode. It can also tell you when the > subject is in focus. The exposure metering. It doesn't give you a +/- number to tell you how far you're off from correct exposure (0) when you put a non "A" lens. It just sets the shutter speed for you. >>>>>Can Pentax DS use manual K-mount lens? Would it have metering >>>>>functionality? Thanks. [quoted text clipped - 20 lines] > far you're off from correct exposure (0) when you put a non "A" lens. It > just sets the shutter speed for you. Will not tell you that it is off because it meters correctly. >>>>>>Can Pentax DS use manual K-mount lens? Would it have metering >>>>>>functionality? Thanks. [quoted text clipped - 22 lines] > > Will not tell you that it is off because it meters correctly. But if you adjust the shutter, it won't tell you how far off you are anymore. A bit frustrating. I think I admire Canon's ease of use with the EF lenses. No confusions. :) >>>>>>>Can Pentax DS use manual K-mount lens? Would it have metering >>>>>>>functionality? Thanks. [quoted text clipped - 26 lines] > anymore. A bit frustrating. I think I admire Canon's ease of use with the > EF lenses. No confusions. :) We are talking about fully manual lenses here, all auto apperture lenses work as they always did. >>>>>>>>Can Pentax DS use manual K-mount lens? Would it have metering >>>>>>>>functionality? Thanks. [quoted text clipped - 29 lines] > We are talking about fully manual lenses here, all auto apperture lenses > work as they always did. But we are taking about light metering. I guess you don't get continuous light metering with manual lens. You do with K-1000. You change the shutter speed and the needle reflects the changes. >>>>>>>>>Can Pentax DS use manual K-mount lens? Would it have metering >>>>>>>>>functionality? Thanks. [quoted text clipped - 33 lines] >light metering with manual lens. You do with K-1000. You change the >shutter speed and the needle reflects the changes. Use the DoF preview lever, that also activates a display in the viewfinder showing +/-3EV error. Adjust until it reads zero. SignatureRegards John Bean [..] > >>>>>>Can Pentax DS use manual K-mount lens? Would it have metering > >>>>>>functionality? Thanks. [quoted text clipped - 8 lines] > >>> > >>>What do you mean by 'exposure reading?' [..] > >>The exposure metering. It doesn't give you a +/- number to tell you how > >>far you're off from correct exposure (0) when you put a non "A" lens. It [quoted text clipped - 4 lines] > But if you adjust the shutter, it won't tell you how far off you are > anymore. I don't mean to sound condescending, but if you double or halve the metered shutter speed, you're off by +/- 1 stop. > A bit frustrating. I think I admire Canon's ease of use with the EF > lenses. No confusions. :) As someone else pointed out: You can get a +/- EV by previewing DOF. BTW, something else I often find useful is to leave the camera in Av mode and not do anything at else differently than you would with a fully automatic lens. This will set shutter speed as it normally would when you press the shutter half way, based on the current aperture the lens is physically opened to, which is always wide open regardless of the setting on the lens. The result is that all your shots come out at maximum aperture but perfectly exposed, without having to mess with the AE-L button or the DOF preview. It turns your camera into a fixed-aperature point & shoot. Sure, you don't always want maximum aperture. But for me - and I imagine many others - one of the most common reasons I ever put a manual lens on the camera is to get a wider aperture than the ordinary zoom lenses give me (eg, for shooting in low light). In such situations, I generally *want* it to go as wide as it can. If I need to stop down, I can always switch to M mode and do the whole DOF preview / AE-L thing. --------------- Marc Sabatella marc@outsideshore.com The Outside Shore Music, art, & educational materials: http://www.outsideshore.com/ > BTW, something else I often find useful is to leave the camera in Av mode > and not do anything at else differently than you would with a fully [quoted text clipped - 11 lines] > (eg, > for shooting in low light). While that may be true for some, many use them because they like the sharpness of these prime lenses. In such situations, I generally *want* it to go > as wide as it can. If I need to stop down, I can always switch to M mode > and do the whole DOF preview / AE-L thing. [quoted text clipped - 6 lines] > Music, art, & educational materials: > http://www.outsideshore.com/ > BTW, something else I often find useful is to leave the camera in Av > mode > The result is that all your shots come out at > maximum aperture but perfectly exposed Some semantic confusion here deserving clarification: At the moment of metering and exposure in Av mode, the lens DOES stop down to whatever aperture you set, after letting you focus wide open. Your shots are NOT "coming out at maximum aperture" if you had previously set a smaller aperture. SignatureAnti-Spam address: my last name at his dot com Charles Gillen -- Reston, Virginia, USA >> BTW, something else I often find useful is to leave the camera in Av >> mode [quoted text clipped - 6 lines] >"coming out at maximum aperture" if you had previously set a smaller >aperture. Not so. Only lenses with an "A" position - and set to "A" - will be stopped down to the aperture set on the camera body. If any lens ("A" or not) is set to any aperture on the aperture ring it will *not* be stopped down in any mode other than "M". In particular in Av mode it will always be used wide-open. SignatureRegards John Bean >> BTW, something else I often find useful is to leave the camera in Av >> mode [quoted text clipped - 6 lines] >"coming out at maximum aperture" if you had previously set a smaller >aperture. Not so - you're adding to the confusion, not providing clarification. While lenses set to the "A" position do behave as you have described, this is not true for the older lenses under discussion, which have no "A" position on the aperture ring. These will meter (and expose) at full aperture when used on a *ist-D/DS set to the Av mode, no matter what aperture is selected on the aperture ring on the lens. > Some semantic confusion here deserving clarification: At the moment of > metering and exposure in Av mode, the lens DOES stop down to whatever > aperture you set, after letting you focus wide open. Your shots are NOT > "coming out at maximum aperture" if you had previously set a smaller > aperture. As others have observed, this isn't true of fully manual lenses with the camera in Av mode. Still, the thought of that possibility makes me nervous enough that I do generally try to make sure the aperture ring on the lens to the maximum position, just in case... --------------- Marc Sabatella marc@outsideshore.com The Outside Shore Music, art, & educational materials: http://www.outsideshore.com/ >>>>>Can Pentax DS use manual K-mount lens? Would it have metering >>>>>functionality? Thanks. [quoted text clipped - 20 lines] >far you're off from correct exposure (0) when you put a non "A" lens. It >just sets the shutter speed for you. Actually, it *will* show you the +/- over/under-exposure bar, but only while you activate the DOF preview. |
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