Sony Telextender (Page 2): I've used it some but my level of demand on the quality of my images is not as precise as yours and my subject matter tends to be larger with less chance of...

gessman Loc: Colorado

joer wrote:

I seldom shoot jpg and may have used CIZ in the past but not with my current Sony Cameras.

Thanks for reminding me and I will try it.

What is your experience with it?

I've used it some but my level of demand on the quality of my images is not as precise as yours and my subject matter tends to be larger with less chance of suffering most kinds of distortion some people complain about. I generally only use it when, if I didn't, I would have no shot at all. I will settle for compromised quality for an extraordinary chance rather than miss the chance altogether so from that perspective, I find that it's at least as good as using a TC when I have used it. I'm out of pocket right now and can't provide any current examples or I would. I would be interested in your results. If you try it.

User ID

joer wrote:

Of course you are correct.

I am too frugal to rent and don't think it is fair to a supplier to purchase an item for trial purposes, in all likelihood.

If you buy online, unembarrassed freedom to return is the accepted replacement for face to face retail
where, formerly, one could try the equipment out before purchasing.
Returns are welcome. It’s normal.

gessman Loc: Colorado

User ID wrote:

If you buy online, unembarrassed freedom to return is the accepted replacement for face to face retail
where, formerly, one could try the equipment out before purchasing.
Returns are welcome. It’s normal.

No returns, no refurbs. Not good for the sub-prime market.

joer Loc: Colorado/Illinois

User ID wrote:

If you buy online, unembarrassed freedom to return is the accepted replacement for face to face retail
where, formerly, one could try the equipment out before purchasing.
Returns are welcome. It’s normal.

At my age embarrassment is as common sleeping for eight hours straight at night. Its not at all the same as face to face retail.

I failed to mention in addition to the ramifications to the supplier such as inventory and sales management, handling and packaging losses demands on communication resources, transit issues, etc...cost.

Guess who absorbs the cost?

imagemeister Loc: mid east Florida

User ID wrote:

There’s no increase in DoF resulting from the slower f-number. It’s the same image that was projected at f/5.6 except it’s been magnified as it emerged from the main lens before it reaches the sensor.

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If there’s any DoF difference at all the TC DoF at f/8 could appear to be less than the original DoF was at f/5.6, simply cuz you’ve magnified all the deficiencies of the f/5.6 image (so the DoF looks worse even though it’s exactly the same).

User ID

gessman wrote:

No returns, no refurbs. Not good for the sub-prime market.

It’s priming the pump :-)

imagemeister Loc: mid east Florida

a6k wrote:

I once rented that lens and that TC. I found the i... (show quote)

My impression of this image is a concerning amount of noise for ISO 250 ! (depending on the crop level ?)
.

imagemeister Loc: mid east Florida

gessman wrote:

I'm curious to know if you've used Clear Image Zoom (CIZ) and what your assessment of it is in a pinch? I'd expect you would be averse to shooting .jpg, but in a pinch with the camera setup optimized for SOOC with .jpg in lieu of using a TC? Care to share your experience with that idea?

imagemeister Loc: mid east Florida

gessman wrote:

I've used it some but my level of demand on the qu... (show quote)

Exactly ! I use CIZ up to 1.6X with no reservations at all - above 1.6X and I am becoming more desperate. 8-(
.

User ID

joer wrote:

At my age embarrassment is as common sleeping for eight hours straight at night. Its not at all the same as face to face retail.

I failed to mention in addition to the ramifications to the supplier such as inventory and sales management, handling and packaging losses demands on communication resources, transit issues, etc...cost.

Guess who absorbs the cost?

You can analyze it all six ways from Sunday, but the best way today to decide between two similar, expensive items is to order both, all in one order, keep the winner, and return the loser. That is the routine way in which the vendor sells you the winner.

Your analysis is so flawed it’s sad. If you stubbornly refuse to do bidnez in the manner in which bidnez is now done, you only shortchange yourself.

Here’s my advance reply to any future request you might post asking for some purchasing advice: Hop an Amtrak to Manhattan and check the gear out in person. And the please don’t buy any refurbs or open box specials cuz you’re not entitled to those.

Charles 46277 Loc: Fulton County, KY

User ID wrote:

There’s no increase in DoF resulting from the slower f-number. It’s the same image that was projected at f/5.6 except it’s been magnified as it emerged from the main lens before it reaches the sensor.

~~~~~~~~~~~~~~~~~~~~~~~

If there’s any DoF difference at all the TC DoF at f/8 could appear to be less than the original DoF was at f/5.6, simply cuz you’ve magnified all the deficiencies of the f/5.6 image (so the DoF looks worse even though it’s exactly the same).

ID I never thought of it that way, but yes--DoF is directly related to focal length, so a stop smaller has equivalent DoF when a longer effective focal length is used... and of course any increase in magnification at any stage will make any blur more noticeable. (A sharp snapshot may not seem to have the same DoF when enlarged to 8x10.)

joer Loc: Colorado/Illinois

User ID wrote:

You can analyze it all six ways from Sunday, but t... (show quote)

The best thing about your advice is I don't need it or want it.

joer Loc: Colorado/Illinois

gessman wrote:

I've used it some but my level of demand on the qu... (show quote)

I have checked both my A9II and A7R4 and don't have this in the menus. Suspect it is a APS-C camera feature. If I am wrong let me know.

Charles 46277 Loc: Fulton County, KY

User ID wrote:

42MP compared to 24MP is equivalent to a 1.33X TC.... (show quote)

ID, at first you confused me--or I was confusing sensor size with image size... An APS-C sensor (format) size can come in many image sizes (file sizes), such as 24 MP or 40 Mp... so a larger sized image file will take more enlargement, whereas format size will not (necessarily) matter. This is different from film, where the format size itself directly controls enlargement limitations. (Film ISO is sort of like different digital file sizes on a given format.)

If I move up from 21 MP APS-C to 40 MP APS-C would it even matter whether a "full frame" sensor or crop-sensor is used for 40 MP? I ask because my Hasselblad H2 accommodates sensors of the same size, while the MPs are different--and some people prefer the image quality of fewer (but larger) pixels. They say more pixels in the same space increases the relative amount of black space between them.

gessman Loc: Colorado

joer wrote:

I have checked both my A9II and A7R4 and don't have this in the menus. Suspect it is a APS-C camera feature. If I am wrong let me know.

You may have to put your camera in .jpg only mode to see the menu. I do not have an A7R4 or an A9II. My latest is an A7R3 so I'm not familiar with how the A7R4 may differ from the A7R3.

On the A7R4, from the "Help Guide:"

Clear Image Zoom/Digital Zoom (Zoom)
When you use a zoom function other than the optical zoom, you can exceed the zoom range of the optical zoom.

MENU → (Camera Settings2) → [Zoom Setting] → [ClearImage Zoom] or [Digital Zoom].

When a power zoom lens is mounted, move the zoom lever or the zoom ring of the zoom lens to enlarge subjects.

When you exceed the zoom range of the optical zoom, the camera automatically switches to another zoom than the optical zoom.

When a lens other than a power zoom lens is mounted, select MENU → (Camera Settings2) → [Zoom] → desired value.

Press the center of the control wheel to exit.

You can also assign the [Zoom] function to the desired button by selecting MENU → (Camera Settings2) → [Custom Key] or [Custom Key].

I did not check for the A9II