Posts for: frankraney
Apr 1, 2024 20:09:04 #
SuperflyTNT wrote:
So yes, you can change the parameters to look like you can always get a very narrow DOF without a fast lens, but again, you’re just reinforcing how disingenuous you are. In most REAL WORLD CASES you need a fast lens for a very narrow DOF.
Glad you finally agree, that parameters can be changed to get a shallow DOF.
AS far as name calling look in a mirror to see who is disingenuous.
Someone who is disingenuous is slightly dishonest and insincere in what they say.
I am neither.... And you know I'm right,
Oh yes, fast lenses, today, are used more for low light situations, and for a faster shutter speed.
Why do you and your friend always have to be so rude and ridicule people all the time, and call them names. When you point your finger at some, remember, you have three more pointing at you.
Have a nice day....
Apr 1, 2024 14:17:13 #
SuperflyTNT wrote:
As you already saw it was a typo. So now you’re definitely being disingenuous. You know I meant 10’.
I looked back and yes, use asked if you forgot someone with a dancing zero....
Here's 10 feet. Same apperature, just used a longer lens. Could I have went with wider apperature, absolutely. But not necessary. Depends on what you are photographing and the l look you want. Changing any one of the components I mentioned, changes the DOF.
Apr 1, 2024 13:14:53 #
SuperflyTNT wrote:
🤣😂🤣😜🤣
And just how often is your subject only two feet away? When that subject is a more reasonable 1’ away the DOF is almost 4’. Don’t try to defend your ridiculous position with edge cases.
And just how often is your subject only two feet away? When that subject is a more reasonable 1’ away the DOF is almost 4’. Don’t try to defend your ridiculous position with edge cases.
I just gave 2 feet as an example. You say more reasonable is 1 foot away, with DOF of 4 feet. You just moved closer, which decreases DOF with same lens and apperature.
I agreed with you the a fast lens gives a shallow DOF, but DOF is also controlled by distance to subject, lens and apperature , which is true.
Mar 31, 2024 21:17:17 #
BebuLamar wrote:
No both are FX (FF). The difference is that the Df is only 16MP and the D850 is 45MP. Any Nikon F mount lens it doesn't matter. Just use the same lens.
Take a picture with each camera. Same distance from camera to subject. Same lens. display both in PS and zoom to 100%. The subject in the D850 image is 1.7 times the one from the Df.
Take a picture with each camera. Same distance from camera to subject. Same lens. display both in PS and zoom to 100%. The subject in the D850 image is 1.7 times the one from the Df.
Mar 31, 2024 19:57:19 #
SuperflyTNT wrote:
I’m not sure if you’re just dense or being disingenuous. A fast lens lets more light in specifically because it has a larger aperture and that larger aperture is the #1 thing for shallow depth of field.
What was stated was a fast lens was needed to control DOF. As I stated (and it is correct) DOF is controlled by, lens mm, apperature, and distance to subject.
I also stated a fast lens let's more light in, allowing for faster shutter speed. Can you get a shallow DOF with one, yes, but it is only one component, but not necessary, a shallow DOF can be had at lower apertures,
Mar 31, 2024 19:44:34 #
BebuLamar wrote:
Well your comparison isn't right. I am looking for someone with a Nikon Df and D850. Using the same lens and do your test. You will see the 2 cameras which have same size sensor using same lens the size of the subject is much different when you do a 100% zoom in editing software.
Could it be because the df is a ff camera and the 850 is a dx, ff vs crop sensor? And what is the lens made for?
Same size Sensor in what, pixels?
Mar 31, 2024 11:58:54 #
SuperflyTNT wrote:
Well “fast” means a wider f stop. Seems pretty straightforward to me.
True, but it is only one component for DOG. it also is used for a faster shutter speed. And a longer lens can give shallower DOF ( just have to be careful with compression). A fast lens let's more light in and allows for a faster shutter speed. The three things I mentioned control DOF more than a fast lens.
Mar 31, 2024 10:08:20 #
Bruce T wrote:
But depth of field is important. If you want a very shallow depth of field, you need a fast lens…f/1.2,f/1.4. If you want everything in focus you can use a f2/8 or f/5.6 lens and set it at f/8 for your shot.
DOF is sometimes important. I don't see how a fast lens has anything to do with DOF.
DOF is controlled mostly by lens mm, distance to subject, f stop
Mar 30, 2024 18:07:19 #
Bruce T wrote:
I don’t understand your question. A standard for pixels per mm for the sensor….that why one camera is 20MP or 24.2MP or 45MP or 65Mp. If we had the same pixels per mm on all cameras, then only need one camera for everyone….unless the manufacturer installed other options like IBIS.
Your reply is also hard to understand. Use quote reply as I did here and it would make it easier.
I think this is what you are trying to say...........Pixels are not all the same size. Sensors are different sizes, and so are the pixels that collect light. For instance, a crop sensor is about half as large (48%) as a full-frame sensor on a mirrorless or DSLR camera.
So, even though both a crop sensor and a full-frame sensor have 24 million pixels, the pixels are not the same size. Each pixel on the crop sensor is smaller than a pixel on a full-frame sensor.
Mar 30, 2024 11:57:21 #
Mar 28, 2024 21:48:41 #
cwp3420 wrote:
So if you don’t want it or need it, then no one else should want one or need one either? Should we all ask you for permission before buying new lenses?
He didn't say that. He said who wouldn't want want, meaning just that. Everyone should want one...
Mar 28, 2024 13:39:53 #
billnikon wrote:
God bless you, how to you fit all those candles on your cake, and blow them out.
You know, weight was just one of my many many many many too's.
You know, weight was just one of my many many many many too's.
Yup, the might be a lot of cons, but not weight.
Mar 28, 2024 13:36:53 #
EJMcD wrote:
It was originally posted in a different section when the section police got uptight. As I mentioned above Admin would move it to Photo Gallery which they did before you viewed and posted. So, no harm done.
Mar 28, 2024 11:35:44 #
JohnSwanda wrote:
The OP posted it in General Photography by mistake and requested it be moved to the Photo Gallery.
Mar 28, 2024 11:34:42 #
billnikon wrote:
Too long, too heavy, too much extension at 400mm, too SLOW at 400mm, that lens is NOT a travel lens unless you are intending to have your neck massaged each night while your on vacation.
1 1/2 is pounds to heavy? Not for me and I'm 768.