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smile_at_u90012
04-11-2008, 09:01
Hi, been a long time since i visit,hope everyone is fine.On a 35 mm SLR ,the depth of view is determind by the apertures setting such as between f1.8 to f22, but on a digit camera, the aperture setting is so limited,for example,this is what the spec reads on my new cam: (f/2.7 – f/3.5, 36-432mm), so am i missing something or i wont have no depth of view to play with? BTW, the camera is canon 5S IS and here is a link http://www.dpreview.com/news/0705/07050703canons5is.asp

Hokie
04-11-2008, 09:22
It is because of the camera you have. If you buy a DSLR you would have the same aperture range as your fill SLR (as you are using the same lenses).

I would suspect that the small sensor in the camera is why the limited the aperture so much. Small sensor with high megapixels have bad low light performance (lots of noise). So they counter act by not letting it stop down a lot so that it is alway getting as much light as it can.

hwyhobo
04-11-2008, 10:08
the aperture setting is so limited,for example,this is what the spec reads on my new cam: (f/2.7 – f/3.5, 36-432mm), so am i missing something
Yes. This is a variable aperture zoom lens. f/2.7-3.5 is the maximum aperture, but it is different at different zoom lengths. So, most likely at the short end it is f/2.7, at the long end it is f/3.5. Your minimum aperture in both cases is f/8.0.

smile_at_u90012
04-11-2008, 10:24
Oh well, i have also noticed there arent much different between a point and shoot digit cam and a bigger SLR look alike type of cam,so why they even bother to buy/make them?is it because they want the feel and look of a real slr? as for the depth of view issue, i will not have any luck with the canon? the price for a digit slr is not cheap these days.well, have to pay to play i guess.

hwyhobo
04-11-2008, 11:22
Actually, the prices of SLRs have come down dramatically. There are good reasons to buy non-SLR, of course, for some it could be form factor, for some it could be lack of noise. But if neither of those are of concern to you, and you don't need gadzillion megapixels, then look at the price of this camera (with lens):

Nikon D40 (http://www.bhphotovideo.com/c/product/471716-REG/Nikon_25420_D40_SLR_Digital_Camera.html)

smile_at_u90012
04-12-2008, 12:40
Hwyhobo..that Nikon D40 only have ISO from 200 thats not enough for fine photographs.may be i am wrong again..

ToddHibbs
04-12-2008, 17:59
Hwyhobo..that Nikon D40 only have ISO from 200 thats not enough for fine photographs.may be i am wrong again..

The D40 was never intended for "fine photographs." It is an entry-level DSLR.

The S5 IS is also a consumer level model. If your goal is shooting "fine photographs," you are probably not on the right track.

A very good feature of the S5 is the ability to use off camera flash via a radio trigger such as Pocket Wizards. Getting off axis lighting will do a lot to maximize the quality of image you obtain from your S5.

hwyhobo
04-12-2008, 20:46
Hwyhobo..that Nikon D40 only have ISO from 200 thats not enough for fine photographs.may be i am wrong again..
Well, so does Nikon D300 and Nikon D3 (both have base ISO of 200). There are ways around it if you must not have it. What applications do you see as critical that ISO 200 would break? I mean, in the worst case, you can use a neutral density filter, although it does sabotage the ultra low price of D40 somewhat.

smile_at_u90012
04-14-2008, 18:27
Let me clear myself a bit first,in a 35 mm film ISO can drop to 25,which gives a fine grain picture in close up and such,,but in digital term, isn't ISO 200 be in the same term as in 35 mm? if so, thats not nearly enough for micro or close ups.BTW, i have been lookin at the D40x from this canadian wholesales website, which charges lot less than anywhere i have seen in USA,even on Ebay, this model is running from $375 to 500 in USD, is the canadian site pulling legs?

smile_at_u90012
04-14-2008, 18:31
This is a Canadian wholesales website selling items in low cost, anyone had experience with it? I am looking to buy a Nikon 40Dx.Thanks in advance.

hwyhobo
04-14-2008, 18:54
Let me clear myself a bit first,in a 35 mm film ISO can drop to 25,which gives a fine grain picture in close up and such,,but in digital term, isn't ISO 200 be in the same term as in 35 mm?
It has nothing to do macro. 200 is just the base sensitivity of the sensor.

if so, thats not nearly enough for micro or close ups.BTW, i have been lookin at the D40x from this canadian wholesales website, which charges lot less than anywhere i have seen in USA,even on Ebay, this model is running from $375 to 500 in USD, is the canadian site pulling legs?
Most likely. Do you have a URL? Kinda hard to guess what Canadian site you are talking about.

smile_at_u90012
04-14-2008, 18:56
Sorry, i messed up the first post but here is the site

http://pemglers.com/product_info.php?products_id=200&_kk=nikon%20d40x&_kt=2a40876f-49a1-4a08-9c97-bbaf3881d23f&gclid=CNirtdDm25ICFRcdsgodgkq9_Q

hwyhobo
04-14-2008, 18:58
http://www.ripoffreport.com/reports/0/325/ripoff0325337.htm

smile_at_u90012
04-14-2008, 19:09
I have just one thing to say, thanks a lot to u hwyhobo ,again,thanks.

djf
04-20-2008, 01:19
Hwyhobo..that Nikon D40 only have ISO from 200 thats not enough for fine photographs.may be i am wrong again..

So what? Going less than 200 on a DSLR does not buy you anything.

smile_at_u90012
04-20-2008, 09:24
Okay, i think i can understand about the ISO between film and digicam now, in digicam with an iso 200 iso sensor is about the same as a film camera with an iso of 25,BTW, I have won a bid on Ebay for a brand new Nikon D40 with lens for $382 plus $24 shipping,most of the other buyer in othe auctions paid up to $401 for the same camera.i think i had made a right choice, thanks everyone.

djf
04-20-2008, 19:16
Okay, i think i can understand about the ISO between film and digicam now, in digicam with an iso 200 iso sensor is about the same as a film camera with an iso of 25,BTW, I have won a bid on Ebay for a brand new Nikon D40 with lens for $382 plus $24 shipping,most of the other buyer in othe auctions paid up to $401 for the same camera.i think i had made a right choice, thanks everyone.

That isn't true. ISO relates directly to ASA. If you were talking about the DIN scale then you would be right.

smile_at_u90012
04-20-2008, 19:21
HI, and yes i realized that as well,so an ISO/ASA of 25 from a film camera more and less translates to ISO/ASA 200 of a digicam?

hwyhobo
04-20-2008, 20:36
HI, and yes i realized that as well,so an ISO/ASA of 25 from a film camera more and less translates to ISO/ASA 200 of a digicam?
No, 25 is still 25. I miss, however, why this relationship between film and digital is important to you? Perhaps you can give examples of situations where this would be critical to you?

hwyhobo
04-20-2008, 20:54
That isn't true. ISO relates directly to ASA. If you were talking about the DIN scale then you would be right.
Actually, 200 ASA would translate to 24 DIN. ;)

Just for the history buffs: DIN (Deutsches Institut für Normung) was a German organization for standardization, just like ISO (Organisation internationale de normalisation) is an international standards organization. For light sensitivity measurements DIN used logarithmic scale and expressed sensitivity in degrees marked as "DIN", ISO used arithmetic scale. To confuse the matters somewhat, ISO corresponded exactly to the older ASA (American Standards Association) norm. Through mergers and organizational changes ASA became what is known today as ANSI (American National Standards Institute).

DIN and ISO correlate as follows:

DIN - ISO
15 - 25
18 - 50
21 - 100
24 - 200
27 - 400
30 - 800
33 - 1600
36 - 3200

Note that in the old days of film, speeds over 400 ASA/ISO in everyday applications were rarely used, and were mostly accomplished by "pushing" in the development process.

I doubt this helps the OP, but what's a thread without a bit of trivia. ;)

hwyhobo
04-20-2008, 20:58
Oh, and yes, I am old enough to remember both ASA and DIN - Agfa and ORWO. :wow:

Anyone here shot ORWO? No? Count your blessings. :rofl:

smile_at_u90012
04-21-2008, 09:50
No, 25 is still 25. I miss, however, why this relationship between film and digital is important to you? Perhaps you can give examples of situations where this would be critical to you?

Hi, this is where i am confused, an ISO 25 film speed in 35 mm slr and an ISO 200 in digicam, there number are not the same, but do they have the same sensitivity in absording light?

hwyhobo
04-21-2008, 10:57
In ISO 25 film speed in 35 mm slr and an ISO 200 in digicam, there number are not the same, but do they have the same sensitivity in absording light?
No. ISO 200 is 8 times "faster", so has 8 times greater sensitivity.

In case of the Nikon you were looking at, ISO 200 being the base is just a design decision on the part of Sony. Most Canons design their sensors with a base ISO of 100.

smile_at_u90012
04-26-2008, 18:32
Thanks a lot, my Nikon D40 just arrived yesterday and i shot some photos today on auto, i am looking to buy a 55-200 zoom, i havent mess with the manual yet but can anyone tell me how do i adjust the aperture setting on the lens? doesnt it work like a 35mm film cam? thanks in advance.

hwyhobo
04-26-2008, 19:05
55-200 is a G lens, if I am not mistaken. That means no adjustment on the lens, just through the camera menu.

smile_at_u90012
04-26-2008, 19:11
the spec said it has a range from f4.5- 32.

hwyhobo
04-26-2008, 20:52
Very well may be, but you still need to set it through the camera menu. User's manual has several sections on different modes and on how to set shutter speed and aperture.

smile_at_u90012
04-27-2008, 12:06
Okay, how the dslr make adjustment to the apertures? digitally or mechanically?i am new to dslr right now or may be for a while until i get all these technical info i need.

hwyhobo
04-27-2008, 18:23
Both the lens and the camera have chips built in. The chip in the camera is the boss and tells the chip in the lens through digital signals sent over electric lens contacts during exposure to close the aperture to a certain value.

In the end, it's exactly the way it always was, but now it is all centralized in the electronic brain inside the camera body.

smile_at_u90012
04-27-2008, 18:51
Oh wow...so dslr lens doesnt have a diaphragm like those lens for a slr?

Hokie
04-27-2008, 20:49
The lens is the same just how the body controls them have changed. In the old days there was a mechanical link that closed the aperture the correct amount now it is done electronically.

older FD mount lens
http://i181.photobucket.com/albums/x32/hokie95/web/CanonFDlens_rear.jpg

The contacts on a Canon EF lens (current mount both film and digital bodies introdueced in 1987)
http://i181.photobucket.com/albums/x32/hokie95/web/1968347.jpg

smile_at_u90012
04-28-2008, 11:47
Okay, do u mean all dslr lens have no diaphragm? and the aperture open and close within the camera body ?

hwyhobo
04-28-2008, 12:12
No, the lenses are the same as they were. It's just that the closing of the diaphragm is now triggered electronically, instead of mechanically.

smile_at_u90012
04-28-2008, 12:23
Hi, i think this pretty much end my question then,,u guys are so informed, like the saying goes: ''you will never be an expert'', there is always something new to learn,thanks a lot guys.

hwyhobo
04-28-2008, 13:37
Alas, working in high tech, this is the truth of progress - your learning never stops, and in a few years much of what you have already learned becomes obsolete. Gets tiresome sometimes, but it does keep one's gray cells churning.

smile_at_u90012
04-30-2008, 19:04
Hello again guys, i been a fan of Nikon for as long as i been into photography, not that i am a pro, i took hwybobo on the Nikon D40 because i like Nikon and this model is the entry model to dslr in the market, i have no doubt this camera can promise enough or more than i ever need, i am amazed to see the close-up photo below just by using the stock kit lens, i set the mode to A and used the widest 5.6 at a maxed out zoom of 55mm,this is nice for now, thank u hwyhobo.

btw, the cam my friend has does have a slow sync flash option, i told her to set it to auto and shes taking some pic for me as i type.

http://i171.photobucket.com/albums/u306/smile_at_u90012/DSC_2378.jpg

hwyhobo
04-30-2008, 20:09
I am gonna have to call Nikon and ask them what's holding up my commission. :rofl:

Curley
05-08-2008, 09:00
Smile:

You need to check out this web site: http://www.kenrockwell.com/nikon/d40.htm

It contains loads of useful information, tips and tricks you can use on your D40.

That site helped convince me to buy the D40 instead of the Canon Digital Rebel XT -- and I had been a Canon guy since I was a kid. But, as Ken Rockwell says, the D40 is "incomparable."

BTW, I also am the proud new owner of the Nikkor 18-200 mm VR zoom lens -- and I'm loving it.

smile_at_u90012
05-09-2008, 10:21
Yes Curley,i actually read from the that site u provided for me b4 i bought the Nikon D40, this camera is awesome for its money, i noticed the manual said the self timer can be set to 20 seconds, but i only see 10 seconds in the camera setting, do u need the use of remote to set the 20 seconds?