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Comment by Anvh posted on Printing from Canon MP 610 at 15/07/2009 - 17:31
Here is the Canon guide simply follow these steps link
Comment by Anvh posted on Printing from Canon MP 610 at 15/07/2009 - 17:07
If you mean that the APS-C needs to be magnified more then the 35mm to cover a standard 6"x7" photo then you're correct and that's what the circle of confusion is about... at least for the most part.
Since the 35mm isn't magnified that much you have more leeway before something appears not sharp.
At least that's my understanding of it.
Comment by Anvh posted on k200 vs k20 at 15/07/2009 - 16:40
This is a thing that's often misquoted, but smaller formats have more DOF for a given field of view and that's because the focal length of the lens to achieve that field of view is shorter.
Did a comparison with the FA*85 and the DA*55.
The DA*55 can be seen as a digital replacement of the FA*85 on 35mm format. He is a part of that comparison.
The FA* 85mm on a 35mm camera and the DA* 55mm on a Pentax K10D.
Because the 55mm doesn't give the same angle of view as the FA* 85mm, we need to stand just a bit closer. The subject distance for the FA* 85mm is 10m and for the DA* 55mm 9.9m, with these distance the subject will be the same length on both photos.
With the distance given above and both wide open f/1.4 the;
DA* 55mm would have a DOF of 183.8 cm on the K10D
FA* 85mm would have a DOF of 116.8 cm on 35mm film
Now we are going to look purely on what the sensor size does for the DOF so the FA* 85mm on the pentax K10D and on 35mm film with a focus on a subject 10m away and both wide open;
Pentax K10D would give you a DOF of 77.7 cm
35mm camera would be a DOF of 116.8 cm
almost 40cm.
Good the photos would be very different but still it has some effect on the DOF and I'm quite glad of that.
Comment by Anvh posted on k200 vs k20 at 15/07/2009 - 16:24
We seem to have wandered way off the thread of when is Pentax going to produce a converter or extension tubes to work with their lenses.
The K7 was one of them and the WR kit lenses and a super tele lens came on the chart and lenses for the 645D.
It seems like they first want to get the 645D out now since the K7 is released now and that we find after that soon the TC back but I think it might take another year though if you know Pentax by now
Extension tubes was never on the road map and I think you'll need a long time for that one to come out.
Also you use extension tube for close focusing so no need to put SDM contacts in that you only need the contacts for the aperture and there are extension tubes on the market that work perfectly with that.
Comment by Anvh posted on MIssing items at 15/07/2009 - 16:11
So were did things get so heated?
Tooks, I didn't realise that you changed system. Did you get the same stick as well then from a certain someone?
I was refering to the Smaller format and I thought that was pretty obvious really, but if you want to throw in the Hassleblad then you do that, I am not commenting on it!
Again, The D3X is widely known as the best FF camera, I stand by what I said about Yves comment. I brought the D3 into the conversation as it was one of the cameras I was looking at. Yves was talking about Nikon in general so that is why I brought the D3 into it. DX & FX not MF.
The D3X is probable the best FF camera at the moment but you didn't say that you said it was the best camera, so don't blame me for making a generalization since you weren't specific and moving the focus away from the original topic.
I am talking about Nikon and Pentax here, I purposefully left Canon out, please read my comments properly.
I am well aware that other camera makes will be introducing HD Video into their cameras, but not yet. The more professional end cameras may or may not have this facility, at the moment they haven't and that is why I am choosing a model without it!
That I reacted on that with the Canon 50D mark II is quite logical or not since you said that other makes don't have HD Video into their more professional end cameras yet. I can surely read Paul so don't blame me
so, sorry for that but needed to defend myself of course.
With the Hassleblad thing was more of a joke and to show you you weren't that specific sorry you took it the wrong way though and far to personal so that you felt the need to defend Nikon
Aah, the soothing sound of relief all over the place now What a difference George's absence makes to a thread Ooops, that was just tongue in cheek comment George, stay where you are, whether relaxing on your comfy chair or sipping a nice cuppa .
I thought photography was a hobby for the most of us or a profession but it seems it's just something to argue about
Comment by Anvh posted on K20D versus Nikon D300 at 15/07/2009 - 16:00
NOTE the focal length does not change and the depth of field does not change only the effective angle of view of the lens.
The 18-55 would give the same angle of view on digital that your 28-80 macro does now on film also the minimum focus distance is the same I believe (0.25m) so it's a true replacement.
The K200D is a very good camera but there are some reasons to get a K20D though.
- Prism viewfinder
- 2 control dials (very handy in manual mode)
- better high iso performance (lower the K200D probable win but both are very good)
If you can get a K20D it would be a more fulling camera I believe, something that will stay with you longer then the K200D may.
Comment by Anvh posted on k200 vs k20 at 15/07/2009 - 14:57
When doing macro I find it handy to use manual focus and sometimes AF ro bring it near the point.
If you take away AF from the shutter release button you need to press the AF button on the back to auto focus and all the other time it use manual focus since it has quick-shift.
That's one of the reasons I bought it over the others.
Comment by Anvh posted on Pentax D FA100 macro information please at 15/07/2009 - 14:34
Comment by Anvh posted on K20D or K7? at 15/07/2009 - 11:02
Medium format only refers to the size of the film/sensor, the Hasselblad H3D use a mechanical mirror system and pentaprism to direct light from the lens to an optical viewfinder on the back of the camera, that is what a SLR is right.
The descusion was only about APS-C format at first, you introduced the Nikon D3 to it.
Yves said this "Beside, quite often, I find Nikon cameras are overrated. They are good cameras, but they're not the Holy Grail."
You argued the D3X is widely known as the best camera.
We are only talking about cameras about this point and when I said Hasselblad makes better cameras, you said that doesn't count since they are MF.
At no point it was clear we were only talking about APS-C and FF format if I'm correct, we only said cameras.
What do you call the Canon 5D mark II, seems quite professional to me though. Okay not a 1D but the next best thing though.
And you reason is beyond my understanding to be honest, if you don't need it just don't use it.
The hardware isn't different from a camera without video and it's only software that enables it to take videos.
Some cameras without video mode can record movies by altering the software on it, basically if the camera can handle it you can make any camera record video. The D300 and the D3X are for sure capable to record video since they have liveview.
Comment by Anvh posted on K20D versus Nikon D300 at 15/07/2009 - 03:45

