FAQ: Canon EOS 450D / Digital Rebel XSi Volume III


22.06.2009 14:22:00

Firstly, do not shout
but just not scored zameitl that CBSA was pressed
It's just not quite "landscape" focus, that's all. Although here, too, the taste and color, I will not argue

who is as suited to the landscape
 

22.06.2009 14:40:00

telephoto scenery is very good
interesting. Can throw a couple of examples?

22.06.2009 14:41:00


Well, I looked only 200 mm, once the choice is made m / s from the two models. In Soviet lenses are not strong. Just Fix
on 200 * 1. 6 is somehow hard to deal with landscapes. But this is IMHO, of course.



who as an approach to landscape
It would be interesting to look at landscape photography at 200mm Fix. . . not even a photo, and the process itself.

22.06.2009 14:45:00

not even a photo, and the process itself.
and what he was much different from other shooting landscape?

22.06.2009 15:04:00


Well, have you tried? I though telephoto (so far) no, but ultrazoom with eq. up to 432 mm focal is - t. h. understandably my surprise. I do not know what to focus on such landscapes shoot. Where to aim such a narrow angle, and that the frame gets. Examples can be 200 mm (320 mm equiv)?

22.06.2009 15:11:00

Well, have you tried?

tried but he did not particularly like

and examples who takes great scenery in this way - a lot of


and 200mm so in general is full of examples. . neotorye and 500mm remove fine

22.06.2009 15:21:00
quote:
:

telephoto scenery is very good
interesting. Can throw a couple of examples?
fact that quickly found:

quote:
:


Well, I looked only 200 mm, once the choice is made m / s from the two models.
This one model - zoom 80-200.
quote:


who as an approach to landscape
It would be interesting to look at landscape photography at 200mm Fix. . . : Shuffle: Not even a photo, and the process itself.
He is no different from other ways:)

And if the panorama of glue, then there is great in high resolution are obtained type 9000 * 12000 pixels or more. You can print these wallpapers. . . .

22.06.2009 15:26:00

I do not know what to focus on such landscapes shoot.
Such focus often use when they want to emphasize the size of the sun at sunset or low moon. . .

22.06.2009 15:31:00

telephoto scenery is very good
interesting. Can throw a couple of examples? You can

:
Jupiter:
http: // album. foto. ru: 8080 / photos / or / 3968/537301. jpg (landscape - 2100x1400, 672, 2Kb)
http: // album. foto. ru: 8080 / photos / or / 3968/552842. jpg (tyts - 1200x800, 350, 4Kb)
Granite:
http: // foto. ixbt. com / photo / 383133 / 11047Qfjoh3BMfC / 181676w. jpg (tyts - 820x545, 126, 8Kb)

p. p. and whether it will be necessary oduvan (all the same 1, 5 thousand), or enough adapter? What will I get this device?

22.06.2009 15:39:00



Thanks, interesting. Apparently, the approaches to landscapes still different .
I remembered some of their similar frames, but. . . constantly use such focus for landscapes. . . in general, not for me .

22.06.2009 15:40:00

oduvan very useful if not Eran with wedges \\ raster
gives confirmation of focus

22.06.2009 15:48:00
quote:
:



Thanks, interesting. Apparently, the approaches to the same different landscapes; ).
course different, are as it were dull if all of you to take pictures the same way?
quote:
I remembered some of their similar frames, but. . . constantly use such focus for landscapes. . . in general, not for me).
Well, nobody is talking about "constantly", although I had my way I would focus on the scenery shot at least 100, the only problem is that not always be able to move to the desired distance from the landscape:)
And so often to take pictures 10-20, and even at this compensates for the lack of width "pan" (gluing).

22.06.2009 16:02:00


not always be able to move to the desired distance from the landscape
So in this whole point . There are cases when the distance is better, but still reverse (those "10-20", well and more) more often in practice, in my opinion. Well I did not write that it is impossible, but just not quite landscape DF were identified.

22.06.2009 16:24:00

11UR Vega 2, 8/50
This enlarger lens. He has no focusing mechanism. Besides, I doubt that he M42 rather M39.
general with such issues here:
Neavtofokusnye lenses on the figure. Volume II

23.06.2009 8:45:00
Read more here
this forum - & gt; http: // www. astroclub. kiev. ua / forum / index. php? action = ... page; topic = 2757. 0

This enlarger lens. Well I do not know search returned the following result http: // www. photohistory. ru / index. php? pid = 1207248189425682 , quite a Soviet telezum camera.


23.06.2009 8:52:00

oduvan and Chinese is, if 1 to 5 rubles expensive


so that Granite - normal lens
and Vega did for enlarger http: // www. photohistory. ru / 1230910849087811. html


23.06.2009 8:57:00
ixbt lights!

23.06.2009 9:05:00
This is Mark 5?

23.06.2009 9:17:00

type yes here

23.06.2009 9:20:00

quite a Soviet telezum

11UR Vega 2, 8/50 - I like about him Gutara, and not about Granite.
However, SD - version for reproduction machines.


is Mark 5?
No, this is a new DVD-spinner by IHC.


23.06.2009 9:23:00

oh, it was necessary instead blyureya formatted photographic plates

23.06.2009 9:30:00

Formatik small. Well, if the plate is not less than 18x24 cm.

23.06.2009 9:51:00

bets are sorry.

23.06.2009 10:22:00

oh, thought fit
and looked, 1d - 156x158 mm too small

23.06.2009 14:40:00
If we believe the snapshot, the thickness of the carcass in the bottom thereof is not less than the diameter of the CD, about 15 cm

23.06.2009 16:04:00


And he svorachivaetsya tube.
 

23.06.2009 16:47:00
from loshara. . . Shedevr button and did not. . . . . . .

23.06.2009 19:08:00
Interested eyecup, increases, but not obrazayuschy image in the viewfinder.
topics mentioned in the header eyecup Tenpa. Where it can be purchased?
Maybe something else there except Tenpa?

Suitable Do what?
http: // www. dealextreme. com / search. dx / search. Viewfinder

Another question. I want to purchase an additional battery for the 450D.
Should I chase the home or you can buy a third-party?
(Doubts arose, ie. A. In the mobile phone batteries third-party worked 2 times less.)


23.06.2009 19:51:00

My impressions of this eye cup here. Buying on ebee. me he was not needed. I change (bought a week ago) on something more useful to me at cost.

23.06.2009 19:54:00

And where you have ordered?

23.06.2009 21:16:00

increases, but not crop the picture in the viewfinder.
At one time bought this:
http: // www. dealextreme. com / details. dx / sku. 2329
Turned unpalatable. Sensitive to illumination, requires tight abutment eye to the eyepiece. Not enlightened contrast viewfinder image falls. And the image itself can be seen as if at a distance.
1. An increase of 25 see the whole picture, but the service infa bottom of the frame is no longer visible, with an increase of 2. 5 is visible only the central portion of the frame.
apply only once or twice when photographing celestial objects.
IMHO, I believe that none of the request does not meet the uncircumcised pictures.

23.06.2009 22:35:00
Dear owners 450D, pozhalusta help me check the metering sensor:
to shoot 4 frames (such as a computer screen), consisting half of black and white fields (2 vertical and 2 horizontal). Same
you have obtained results metering?
I get different, but in live-twist - the same. . .

23.06.2009 22:38:00

Are the results you have obtained metering?
What type of metering prefer to experiment?

23.06.2009 22:56:00

evaluative or center weighted mode Av, and if you feel like it, then the other.
not to spend wasted resource shutter can not be removed, but at least see what figures to be. . .

23.06.2009 23:08:00

Are the results you have obtained metering?
metering method and the selected focus point Announce

23.06.2009 23:14:00

method has already been pointed out, the point - can be one central, cars can be from 9 - chooses 3 of them falling on the border of black and white.
as possible and in Rasfokus - I do not care (in a point-and partial modes).

24.06.2009 0:01:00

method has already been pointed out, the point - can be one central, cars can be from 9
you specified two different methods of measurement. Note that when matrix metering chamber is linked to the focal point

24.06.2009 0:23:00

if not difficult to check both
or at least with such conditions: Av, otsenocheny measurement autofocus on one central point that falls exactly on the border of black and white.
I nameryanoy difference in exposure is obtained up to 10 times
and by partial metering - generally 100 or more times (extract more when the top or left white box)
ISO 800, aperture F / 5. 6

24.06.2009 5:42:00

not to spend wasted resource shutter
of my 8000 shots on the counter, keeping 2,500 photos on a disc. with the experimental frame, I think nachelkal 2000 pieces. so save 4 clicks - no question.

about the differences between reading:
1. Fota screen - not true. Fota real objects.
2. Partial and Spot are very sensitive to the position of objects in its field.
3. check should be without maleysh9ih camera movement.
4. in the measurement site to do a plain background, the camera was not looking for the difference between black and white in one place. albeit quietly tunes in one color and at the same time take into account the support zone (which will be different colors).

5. readings do not differ if meet these conditions.
6. I have had different when your terms. while setting up the method of measurement or change the background, the frame is shifted slightly overlooking pine and a new measurement is another.
7. most correct measurement for your test - Center-weighted.


one central point that falls exactly on the border of black and white

really not the right test. switch to center-weighted or spot polunazhav descent and follow indications - from fluctuations in the numbers of your hands will ride very much (from 1/5 to 1/250 for example).
you just deliberately confuse the electronics of the camera.
and how would you measured the brightness if you constantly changed before the measurement object?


24.06.2009 9:00:00

from my 8000 frame
yes, I'm kidding. . .

1. so the differences are observed when taking pictures of real objects. just shooting the screen is more revealing. can try to take a picture of two-thirds of the heavens and the earth one, and then turn the camera upside down and take another shot. and in the evaluation and center weighted mode with a single focal point in the center I have a significant difference, even under the condition that it will focus on the area of ​​the sky with the same lighting (but still in the sky were obёkty with contrast sufficient to focus) .

2. What about the accuracy of this is understandable, but even if you move the frame somewhere percent to 10 back and forth, holding differs by one notch, but not significantly. while metering in live-View, which is the center-weighted (or rather a greater significance in the area of ​​the moved rectangles), works the same way.
3.. . 7 cm. Above.
PS try yet on real obёktah, if not difficult. the main thing that they have sufficient contrast between the top and bottom. and see how work out in this case live View, provided that there is low-contrast obёekt rectangles with the same illumination.

24.06.2009 9:08:00

well as in the evaluation is binding to the focal point
ESOL select the center and remove the frame, consisting of white and black half, you can easily move the point that one, then the other half (if with the hands) and the data exchanged - and exactly what you do not get to the border
this method will not say anything about the place average metering

mode as live view matrix metering is used, as stated in the instructions, but probably no binding or metering to the focus area or the area is large enough (and froze becomes more like a center-)

addition, matrix metering uses not only the data at the focal point, but also tries on the basis of data from combinations of values ​​35 metering zones, calculate, what scene you're shooting and adjusts the exposure under this
ie, light the upper part of the frame and dark bottom - landscape, metering at the focal point is lighter than in other cases
dark spot in the center - a portrait, the weight of the central part (or the point of focus), the largest and so
predict this type of measurement is impossible therefore experienced
photographers do not recommend to use exposure compensation in this mode


24.06.2009 10:07:00

this method will not say anything about the metering
Have you tried? how much you have changed?

mode as live view using matrix metering
try poperemeschat rectangle arrow cursor in the field with different lighting, as well as the overall composition poperemeschayte, leaving the rectangle on the same site - you will see in reality metering works in live-twist .

ie, light upper part of the frame and dark bottom - landscape, metering at the focal point is lighter than in other cases
however, the difference I have in the case where the left and right half of the frame at different light conditions.

predict this type of measurement is impossible
but live View results more predictable and consistent with expectations. In any case, the results do not depend on the position of the light or dark areas of the frame, and depend largely on the light area in the rectangle.

24.06.2009 10:09:00

have not tried to remove half of the screen
DMA try

in live view matrix is ​​used - it is written in the instructions
but how much weight in the focus area, do not know


24.06.2009 10:18:00
In reality, when a colorful story that you see and what he sees zone metering chamber - are two big differences. It is because of the bias unit from frame to frame and select the unit by the measurement area on the insides of his conviction. Therefore
light meter to check the mottled plaid background, and even catching the border, is fundamentally wrong. Especially compare the testimony of several vehicles.
If you need to check is the light meter - you need to create improvised means uniform matte gray (not necessarily 18%, but not white) background in the entire frame. Can be Rasfokus. Personally, I
to reconcile with an external light meter polzuju gray door shelves of kitchen units.
way, if the monitor is not TFT, a pipe, it flickers with a frequency sweep. And the results of shooting four frames may be different.

24.06.2009 11:07:00

but how much weight in the focus area, do not know
you never know what is written in the instructions. . .
better try it for yourself, as I did - then the picture is real.


need to create improvised means uniform matte gray
so on a uniform background reel there is no problem - there is a lot to think the system is not necessary.
However, this method does not check allows you to check the individual zones of the sensor, ie. To. The values ​​of all zones eventually averaged and the result produced by fitting the calibration (as far as I understood from the description of a service program for the 300D, walking on the internet).

I was straining what mode lava-twist obtained using a metering algorithm, and it turns out to be more precise in the more complex scenes. Therefore, I ask to see how it does in others, t. To. I still saved suspicion of partial failure of the sensor.
appeal to the service does not work, ie. A. There appears to documentation stupid poke the lens in a calibrated light source and customize the correction factor for the desired illumination across the entire frame.

And do not find fault with the monitor - it was chosen as an example of how the most improvised example yesterday evening. On my monitor does not adjust the backlight so that its radiation can not recognize the flickering of the speed measuring system camera. Non-uniformity of illumination is not so great that the difference measuring up to several stops.

24.06.2009 11:16:00

And do not find fault with the monitor

me why aversion use as a target fickle thing.
polarized radiation at the monitor and if you put the unit at a distance of 30 cm from it, then the angles are different with respect to the surface of the screen, and then the camera measures the unequal coverage in these areas.

in general, is not all that you see (or rather it seems your brain), sees the sensor measurement. he sees either more or less.
measure the constant object with constant lighting.

and most important question:
-So you have the correct exposition ever turned from the camera?

24.06.2009 11:53:00

I wrote about the permanence of lighting I wrote above.
different angles relative to the surface of the screen, and then the camera measures the uneven lighting in these places
but not so that the difference was a few stops. moreover, in live View all measured properly. brain matrix and I think the same, AE detector thinks otherwise. I hope you understand that the problem is not apparent when shooting a monitor, but on real objects. I have already cited as an example of landscape, with two-thirds of relatively uniform (but which at the same time the camera is able to focus) sky.

and most important question
depending on what is meant by the correct exposure. according to the service center, it turns out right in their tests. in general, I am satisfied on the metering is not too bright odnarodnyh scenes both on the sensor and in the live-View, and the results are almost identical. more complex scenes (for example defined above) are satisfied by the matrix metering, which is not the sensor - the vaunted 35 zones will still lead to overexposure.

therefore ask you if possible to quickly check at what would be defined: this "feature" is at all, or is it my fault instance and should continue to shake the service.

24.06.2009 12:09:00

fault is my copy and need to continue to shake the service.
And how you are going to them to put on the ears? After all, they just
documentation stupid poke the lens in a calibrated light source. And at the factory in the same way.
And if they have all the normal, with any undocumented way to check they do not agree, and they will be right. Likely to be sent. . . photograph and wish you success.
I, too, in the forest-type frames the sky usually results in overexposure of the sky or in the normal forest or normal sky with dark mass of the forest. And always will be, regardless of the metering method, if the contrast of the plot wider DD camera. We have to choose which is more important. Well RAW sometimes helps.
 

24.06.2009 12:13:00
matrix metering at 450d prone to overexposure
perhaps because of these overbrights possible to pull than the 400d
but still often knocks
I spit on this matter, and so put center-

thread who say, where there is a sensor measurement ?

FAQ: Canon EOS 450D / Digital Rebel XSi Volume III

info@www.about-digital-photo.com