Look up your exact model using the upgrade advisor on the Crucial or Kingston websites. Both of these produce top quality memory and guarantee comparability with a no quibble warranty (I speak from experience). I checked on the Crucial site and entered the 2017 model as an example. For a 32GB kit, 2 x 16GB, the price was £119.00 inc. VAT and P&P.

If you haven't already done so, in addition to the memory you should consider upgrading to an SSD (the largest you can comfortablly afford and ideally larger than 512GB) for your OS and programmes. As an example, the Crucial MX500 is listed as a compatible upgrade at £65.00.

Other than the above, your looking at a change of computer to one with a similar amount of memory and SSD.

You might also want to consider ditching Photoshop and switching to something leaner and less resource hungry but similarly capable. For example Serif Affinity Photo link

Hope this helps.

Jon😉

Sold for £310.00! A good buy for someone, IMO. Nice to know that there are still some 'bargains' to be had on fleabag.

Currently selling for £300.00 (1 bidder). Those interested need to move fast as finishes at 16:50, TODAY 😲

https://www.ebay.co.uk/itm/Tamron-70-200-mm-2-8-DI-lD-IF-Macro-Lens-Pentax-Fit/1... c584-4980-b11a-30b961b63171]link[/link]

PM sent re 50-135mm

Tamron still for sale? Interested if it is (PM me).

Jon

PM sent re lens, Martin.

Hi Chris

The description of the lens given in your original post was, I now realise, decidedly understated.

Ergonomically and functionally, I find it an excellent match for the K3. In use, auto-focus is snappy and accurate with no micro-focus adjustment needed (confirmed under controlled conditions using a Spyder Lens Cal). Sharpness, contrast and colour rendition and are good at f/1.4, very good at f/2 -2.8 and approaching excellent by f/4. As others have commented, CA is evident at f/1.4 under certain conditions, but with your (now my ) copy it not a serious problem and easily correctable 'PP'. Out of focus highlights are rendered with a pleasing bokeh.

An unexpected bonus was our wide-ranging and, from my perspective, thought-provoking and informative post-exchange discourse.

All-in-all, a thoroughly enjoyable and rewarding experience.

Best

Jon

Absolutely stunning: a delight to behold.

I've booked an appointment with my GP to discuss my 'capture envy'.

Makes me realise that I've not begun to scratch the surface of my Sigma 100-300mm F4's potential thus far

Thinking of switching hobby to coach spotting.

Jon

PM with request for further details sent.

The alternative is to dispense with the Raynox adapter and mount the supplementary lens with a stepping (down) ring.

I have used both variants of the Raynox and been impressed by their performance, ease of use and portability. So much so that despite having true (1:1) macro lenses (Sigma EX DG 70mm and Pentax DFA 100mm) I consider them 'core accessories'.




The image above was captured using the DCR-250 attached to a DA 50-200 ED.

If you would like to have a 'play' with the Raynox supplementary lenses, send me a PM and we'll work something out.

Jon